Get a list of Instrument objects. Instruments have a 1:1 mapping with Observations.

### Available end points:

- `/instruments/` - Will list all Instruments in the database
- `/instruments.json` - Will return all Instruments in json format
- `/instruments/<object_id>/` - Returns Instruments object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `title`
- `uuid`
- `keywords`
- `instrumentType`

### How to use filters:

- `/instruments/?title__startwith!=Instrument.title: DETAILS NEEDED`
- `/instruments/?uuid=c7fa005e2095425392b18adbd7b40617`
- `/instruments.json?instrumentType=radiometer`

GET /api/v2/instruments/?format=api&offset=300
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "count": 1639,
    "next": "https://api.catalogue.ceda.ac.uk/api/v2/instruments/?format=api&limit=100&offset=400",
    "previous": "https://api.catalogue.ceda.ac.uk/api/v2/instruments/?format=api&limit=100&offset=200",
    "results": [
        {
            "ob_id": 2397,
            "uuid": "ba119042c19043fd9ef8eebe39773379",
            "title": "MRF - C-130 - PAN gas chromatograph",
            "abstract": "PAN gas chromatographer built-in by MRF.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1669/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1670/?format=api"
            ],
            "instrumentType": "gas_chromatograph",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11411/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11410/?format=api"
            ]
        },
        {
            "ob_id": 2410,
            "uuid": "7179649d02334b1a9f73cdb19dc1e7e6",
            "title": "Cardington: Belfort model 6230A visibility sensor",
            "abstract": "Visibility at the Cardington site is measured using a  Belfort model 6230A visibility sensor.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1683/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1684/?format=api"
            ],
            "instrumentType": "met_sensor",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11456/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11455/?format=api"
            ]
        },
        {
            "ob_id": 2414,
            "uuid": "ae9a53d5f8c64daab027830fdb4fe5b4",
            "title": "Cardington: Delta-T ThetaProbe Soil Moisture Sensor",
            "abstract": "Volumetric soil moisture content measurements are made using  Delta-T ThetaProbes, located at depths of 10cm, 22cm, 57cm and 1.6m below the surface, at both the west and south sites of the Cardington Met Office Research Unit site.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1686/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1687/?format=api"
            ],
            "instrumentType": "met_sensor",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11468/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11467/?format=api"
            ]
        },
        {
            "ob_id": 2418,
            "uuid": "60325638f90f44ad8a82a16e11455da7",
            "title": "Cardington: Druck 1830 series pressure transducer",
            "abstract": "Water table depth below the surface is measured at the west and south Cardington sites. This is obtained using  Druck 1830 series pressure transducers, located inside boreholes in the ground.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1689/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11480/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11479/?format=api"
            ]
        },
        {
            "ob_id": 2422,
            "uuid": "4b2c27a9846040a4b448489d5f768484",
            "title": "Cardington: Gill Solent HS-50 ultrasonic anemometer",
            "abstract": "Three Gill Solent HS-50 ultrasonic anemometers are deployed at the cardington Met Office Research Unit site and they are used for making fast response wind measurements.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1691/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1692/?format=api"
            ],
            "instrumentType": "met_sensor",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11492/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11491/?format=api"
            ]
        },
        {
            "ob_id": 2426,
            "uuid": "f998c3f36eaf486ebc06cbf91ef0b065",
            "title": "Cardington: Heitronics KT15D Infrared radiation pyrometer",
            "abstract": "Surface radiative temperature at the Cardington site is measured using a  Heitronics  KT15D Infrared radiation pyrometer pointed at the ground.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1694/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1695/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11504/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11503/?format=api"
            ]
        },
        {
            "ob_id": 2430,
            "uuid": "1f5971a88ad44310bd4b12e5798c8334",
            "title": "Cardington: Kipp and Zonen CG4 pyrgeometer",
            "abstract": "Two  Kipp & Zonen   CG4 pyrgeometers are used at the Cardington site, for measuring the incoming and outgoing longwave irradiances (with a spectral range of 4.5 to about 40 mm.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1697/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1698/?format=api"
            ],
            "instrumentType": "met_sensor",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11516/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11515/?format=api"
            ]
        },
        {
            "ob_id": 2434,
            "uuid": "a87b9157acd449a2ab73fbeb5a92d57c",
            "title": "Cardington: Kipp and Zonen CM21/CM22 pyranometers",
            "abstract": "Three  Kipp & Zonen  CM21/CM22 pyranometers , are used to measure global incoming, diffuse, and relected solar irradiances at the Cardington site. The diffuse measurement involves shading the sensor from the direct solar beam using a solar tracker.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1700/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1701/?format=api"
            ],
            "instrumentType": "met_sensor",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11528/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11527/?format=api"
            ]
        },
        {
            "ob_id": 2438,
            "uuid": "fa8e9dfd21994bd3962af1d4d598d5f5",
            "title": "Met Office Cardington: LI-COR LI-7500 Gas Analyser",
            "abstract": "Fast response humidity measurements are made using a LI-COR LI-7500  open path CO2/H20 gas analyser, located at the top of the 10m tower at the Cardington site. In addition to measuring water vapour, this instrument is capable of measuring atmospheric carbon dioxide concentration. When combined with simultaneous data from a sonic anemometer, humidity and CO2 fluxes can be calculated.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1703/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1704/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11539/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108856/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108857/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11540/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108858/?format=api"
            ]
        },
        {
            "ob_id": 2442,
            "uuid": "bd45e4c6f6b34ea3a9a15e35ceec8b2b",
            "title": "Cardington: MRI integrating nephelometer (model 1550B)",
            "abstract": "An MRI integrating  nephelometer (model 1550B) measures the atmospheric scattering coefficient of dry aerosols at the Cardington site.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1706/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1707/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11552/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11551/?format=api"
            ]
        },
        {
            "ob_id": 2446,
            "uuid": "a9586c8cdae0429f988a6a4ab1f50649",
            "title": "Cardington: Michell series 3000 dewpoint hygrometer",
            "abstract": "A Michell  Series 3000 dewpoint hygrometer is situated at a height of 1.2m above ground level at the Cardington site. This is mounted inside the 1.2m temperature screen.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1709/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1710/?format=api"
            ],
            "instrumentType": "met_sensor",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11564/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11563/?format=api"
            ]
        },
        {
            "ob_id": 2450,
            "uuid": "3a1be062c9a4488db30e26bfe2513322",
            "title": "Cardington: Setra Model 270 transducer",
            "abstract": "Barometric pressure is measured to 0.1hPa using a Setra Model 270 transducer (located at a height of 1.5m above ground level at the Cardington site.)",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1712/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1713/?format=api"
            ],
            "instrumentType": "met_sensor",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11576/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11575/?format=api"
            ]
        },
        {
            "ob_id": 2454,
            "uuid": "6bc9cce83aa4473c84450f20e69a3fe7",
            "title": "Cardington: Vaisala Humicaps",
            "abstract": "Three  Vaisala humicaps  are employed for measurement of relative humidity at the cardington site.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1715/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1716/?format=api"
            ],
            "instrumentType": "met_sensor",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11588/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11587/?format=api"
            ]
        },
        {
            "ob_id": 2461,
            "uuid": "c646c3f8febb4922b3a25a7d11cdd622",
            "title": "Met Office - Ordinary raingauge",
            "abstract": "A so-called ordinary raingague is a funnel-type raingauge that has been in use for all manual measurements on the Met Office networks since the earliest days of observing.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1719/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1720/?format=api"
            ],
            "instrumentType": "met_sensor",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11610/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11609/?format=api"
            ]
        },
        {
            "ob_id": 2468,
            "uuid": "f296a8e45ff04b87a7212766ceded4c6",
            "title": "CNRS - UV LIDAR",
            "abstract": "Lidar flown on the Mystère",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1730/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1729/?format=api"
            ],
            "instrumentType": "lidar",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11631/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11630/?format=api"
            ]
        },
        {
            "ob_id": 2495,
            "uuid": "3807fe27036943bca0a1fb035c5921b2",
            "title": "MRF: Fluorescence water vapour sensor",
            "abstract": "Fluorescence water vapour sensor onboard the Met Office Meteorological Research Flight (MRF) C-130",
            "keywords": "Met Office, airborne, C-130",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1742/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1743/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11699/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11700/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/73303/?format=api"
            ]
        },
        {
            "ob_id": 2505,
            "uuid": "d99c1aab18bc4953ad58d002e414b9bb",
            "title": "MRF: Johnson-Williams Liquid Water Content Meter",
            "abstract": "Johnson-Williams Liquid Water Content Meter onboard the Met Office Meteorological Research Flight (MRF)) C-130.\r\n\r\nOperating principle: \r\nHot wire instrument. Liquid contacts sample wire. Liquid evaporates, altering resistance of wire with comparison to control wire shielded against liquid.\r\n\r\nFor measurement of Clouds microphysics/Liquid/ice Water Content",
            "keywords": "Met Office, airborne, C-130",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1747/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1748/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11725/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11726/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/73288/?format=api"
            ]
        },
        {
            "ob_id": 2512,
            "uuid": "56c310d9153c4d688fa405cdc53d3908",
            "title": "MRF - C-130 - UV Absorption instrument",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1751/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1752/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11744/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11743/?format=api"
            ]
        },
        {
            "ob_id": 2519,
            "uuid": "9748ee644903479d84abf1939c5ac80b",
            "title": "Met Office - Lyman-Alpha Hygrometer",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1755/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1756/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11762/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11761/?format=api"
            ]
        },
        {
            "ob_id": 2526,
            "uuid": "655ac3e97c5443c7964da63754dd5c2a",
            "title": "Fast Forward Scattering Spectrometer Probe (PMS canister instrument)",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1759/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1760/?format=api"
            ],
            "instrumentType": "spectrometer",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11780/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11779/?format=api"
            ]
        },
        {
            "ob_id": 2539,
            "uuid": "d6514c6d24c74f9299aa146938d5821a",
            "title": "UEA: PEroxy Radical Chemical Amplification (PERCA) technique",
            "abstract": "PEROXY RADICAL CHEMICAL AMPLIFIER (PERCA) measures atmospheric peroxy radicals using chemical amplification.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1765/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1766/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11814/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11813/?format=api"
            ]
        },
        {
            "ob_id": 2549,
            "uuid": "100dacbe559b4004a6d024cbea0aa617",
            "title": "TIROS Operational Vertical Sounder (TOVS)",
            "abstract": "The TIROS Operational Vertical Sounder (TOVS) system consists of three separate sub-instruments: the High Resolution Infrared Radiation Sounder (HIRS), the Microwave Sounding Unit (MSU) and the Stratospheric Sounding Unit (SSU). This system is onboard the NOAA 6 through NOAA 14 and TIROS-N satellites (part of the Polar Orbiting Environmental Satellite (POES) system).",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1777/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1778/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11865/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11864/?format=api"
            ]
        },
        {
            "ob_id": 2555,
            "uuid": "84f529eb3a5640ed9b164427e53ea5f0",
            "title": "Earth Radiation Budget Experiment (ERBE)",
            "abstract": "The ERBE instrument aboard ERBS, launched from the Space Shuttle Challenger in October 1984 (STS-41G), had the main aim to provide accurate measurements of incoming solar energy and shortwave and longwave radiation reflected or emitted from the Earth back into space. ERBE instruments were also launched on two National Oceanic and Atmospheric Administration weather monitoring satellites, NOAA 9 and NOAA 10 in 1984 and 1986.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1780/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1781/?format=api"
            ],
            "instrumentType": "radiometer",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11882/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11881/?format=api"
            ]
        },
        {
            "ob_id": 2570,
            "uuid": "aa489e056a2e4c85b55c436e1e901b02",
            "title": "NIMBUS-7 Earth Radiation Budget (ERB)",
            "abstract": "The Nimbus-7 Earth Radiation Budget (ERB) instrument began recording data on November 16, 1978 and continued through June 20, 1980. The principal products are nine years of global albedo, outgoing longwave, and net radiation plus continuing solar irradiance measurements.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1785/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1786/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11929/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11928/?format=api"
            ]
        },
        {
            "ob_id": 2577,
            "uuid": "9450559706e9486eaac0fca70ebd416e",
            "title": "Active Cavity Radiometer Irradiance Monitor I (ACRIM I)",
            "abstract": "The Active Cavity Radiometer Irradiance Monitor (ACRIM) I was launched in 1980 on the Solar Maximum Mission (SMM) spacecraft and produced total irradiance data until 1989.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1790/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1791/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11948/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11947/?format=api"
            ]
        },
        {
            "ob_id": 2583,
            "uuid": "d06b25bb7fd04525957a70df2ac44702",
            "title": "Active Cavity Radiometer Irradiance Monitor II (ACRIM II)",
            "abstract": "ACRIM II was launched on the Upper Atmosphere Research Satellite (UARS) in September 1991.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1793/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1794/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11965/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/11964/?format=api"
            ]
        },
        {
            "ob_id": 2607,
            "uuid": "7d9e1c4143054cfbae6f55197227b0a3",
            "title": "NIMBUS-7 Coastal Zone Color Scanner (CZCS)",
            "abstract": "The Coastal Zone Color Scanner (CZCS) instrument flew aboard the Nimbus-7 satellite from October 1978 through June 1986.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1814/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12084/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12083/?format=api"
            ]
        },
        {
            "ob_id": 2630,
            "uuid": "54f897597ec04c09b01095eb05c7419e",
            "title": "Special Sensor Microwave / Imager (SSM/I)",
            "abstract": "The SSM/I is a seven-channel, four frequency, linearly-polarized, passive microwave radiometric system which measures atmospheric, ocean and terrain microwave brightness temperatures at 19.35, 22.235, 37.0 and 85.5 GHz. The data are used to obtain synoptic maps of critical atmospheric, oceanographic and selected land parameters on a global scale.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1834/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1833/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12188/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12187/?format=api"
            ]
        },
        {
            "ob_id": 2636,
            "uuid": "1578228cc3cf4b9fba0b88c61b58800b",
            "title": "Scanning Multichannel Microwave Radiometer (SMMR)",
            "abstract": "The Scanning Multichannel Microwave Radiometer operated on NASA's Nimbus-7 satellite for more than eight years, from 26 October 1978 to 20 August 1987, transmitting data every other day. Intended to obtain ocean circulation parameters such as sea surface temperatures, low altitude winds, water vapor and cloud liquid water content on an all-weather basis, the SMMR is a ten channel instrument capable of receiving both horizontally and vertically polarized radiation. A parabolic antenna 79 cm in diameter reflected microwave emissions into a five-frequency feed horn. The antenna beam maintained a constant nadir angle of 42 degrees, resulting in an incidence angle of 50.3 degrees at Earth's surface. The antenna was forward viewing and rotated equally +/- 25 degrees about the satellite subtrack. The 50 degree scan provided a 780 km swath of the Earth's surface. Scan period was 4.096 seconds.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1836/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1837/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12205/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12204/?format=api"
            ]
        },
        {
            "ob_id": 2651,
            "uuid": "f16d9f9f95db42b0a1db527ef62c9fdd",
            "title": "Spinning Enhanced Visible and InfraRed Imager - SEVIRI-1",
            "abstract": "The Spinning Enhanced Visible and InfraRed Imager (SEVIRI) instrument measures in 12 spectral channels (compared to only 3 on the previous Meteosat) and records data in a 15 minute cycle (30 minutes on the previous Meteosat). The resolution of the high-resolution visible light channel measures 1 km at the sub-satellite point (compared to 2.5 km on the previous Meteosat).\n\nThe first Meteosat Second Generation satellite, MSG-1, came into operational service on 29th January 2004 and was renamed Meteosat-8. MSG-1 has a nominal lifetime of seven years.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1853/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1854/?format=api"
            ],
            "instrumentType": "imager",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12262/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12261/?format=api"
            ]
        },
        {
            "ob_id": 2659,
            "uuid": "109f54f2aff943c2806295305d26583a",
            "title": "Spinning Enhanced Visible and InfraRed Imager - SEVIRI- 2",
            "abstract": "The Spinning Enhanced Visible and InfraRed Imager (SEVIRI) instrument measures in 12 spectral channels (compared to only 3 on the previous Meteosat) and records data in a 15 minute cycle (30 minutes on the previous Meteosat). The resolution of the high-resolution visible light channel measures 1 km at the sub-satellite point (compared to 2.5 km on the previous Meteosat). The second Meteosat Second Generation satellite, MSG-2, came into operational service on 21st December 2005 and was renamed Meteosat-9.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1858/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1859/?format=api"
            ],
            "instrumentType": "imager",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12274/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12273/?format=api"
            ]
        },
        {
            "ob_id": 2668,
            "uuid": "0f042b80bebb4682bd89f8cff103afab",
            "title": "Bristol: GC-MS-NICI",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1866/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12302/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12301/?format=api"
            ]
        },
        {
            "ob_id": 2747,
            "uuid": "452137151c90431389e1177e79f4cbcb",
            "title": "Global Ozone Monitoring Experiment (GOME)",
            "abstract": "Global Ozone Monitoring Experiment, a nadir-scanning ultraviolet and visible spectrometer for global monitoring of atmospheric Ozone, was launched on-board ERS-2 in April 1995. GOME delivers global observations of total ozone, nitrogen dioxide and related cloud information.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1908/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12506/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12505/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/203042/?format=api"
            ]
        },
        {
            "ob_id": 2770,
            "uuid": "723bb5e1edad4ad48f927759bdcf10cb",
            "title": "University of Manchester/UFAM (Universities' Facilities for Atmospheric Measurements): Cloud Particle Imager (CPI) - formerly umist-cpi",
            "abstract": "The CPI can image and count particles in the size range of 15-2500um, with the images having a nominal 2.3um resolution. Image analysis and data processing software provided with the probe takes particle size information (including area and volume) and ice crystal habit classification from the images to produce histograms etc. The CPI is especially suitable for use in ice and mixed phase clouds which typically have relatively low (compared to water clouds) particle concentration of 1000/L. The CPI may be used in much higher particle concentrations, but under these conditions while particle spectra are reliable, absolute particle concentrations are not due to coincidence errors in the particle detection system. While designed for aircraft use, and able to operate at any aircraft speed and altitude, the CPI, with the use of a suitable aspiration device may also be used for ground based, or lab studies. The University of Manchester and UFAM (Universities' Facility for Atmospheric Measurements) operated this instrument.",
            "keywords": "NCAS, AMF, Cloud, Microphysics, Ice, Precipitation, Image",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1926/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1927/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12926/?format=api"
            ],
            "instrumentType": "particle_counter",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12572/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12573/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54192/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/54193/?format=api"
            ]
        },
        {
            "ob_id": 2778,
            "uuid": "9deddcfabe86400f8754e516af180486",
            "title": "Aberystwyth: Tunable Laser Diode (TDL) Spectrometer for water vapour",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1930/?format=api"
            ],
            "instrumentType": "spectrometer",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12591/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12590/?format=api"
            ]
        },
        {
            "ob_id": 2782,
            "uuid": "a64d072a033644b6a0f029d1ed4d60c1",
            "title": "DLR: Frost-point Hygrometer",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1932/?format=api"
            ],
            "instrumentType": "met_sensor",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12601/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12600/?format=api"
            ]
        },
        {
            "ob_id": 2786,
            "uuid": "f46735acdf9d4bd49c2f84c957e36d19",
            "title": "DLR: ozone monitor",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1934/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12611/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12610/?format=api"
            ]
        },
        {
            "ob_id": 2790,
            "uuid": "465c134f3dab4b82acfa1240f437050f",
            "title": "Imperial: Tropospheric Airborne Fourier transform Spectrometer (TAFTS)",
            "abstract": "The goal of the TAFTS instrument is to improve our understanding of the role of water vapour and cirrus clouds in the regulation of the Earth's climate. It can do this by taking direct measurements of the properties of these atmospheric constituents whilst being flown on an aircraft. It is operated by Imperial College London.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1936/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1937/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12621/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12620/?format=api"
            ]
        },
        {
            "ob_id": 2832,
            "uuid": "c2b7b1ce10cf48a19e0ce0662c29e5ed",
            "title": "FAAM/BAE systems: Upward, Downward, Forward and Rear view cameras",
            "abstract": "FAAM core instruments producing video recordings.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1956/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1957/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12759/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12760/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108901/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108902/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108903/?format=api"
            ]
        },
        {
            "ob_id": 2860,
            "uuid": "0f77c835f67641948e3bd3aaa7a38b63",
            "title": "Met Office: Dual-frequency Extension to In-flight Microwave Observing System (DEIMOS)",
            "abstract": "Deimos is an along-track scanning radiometer with dual polarised channels at 23.8 and 50.1 GHz. Deimos is constrained to view in five directions either upward or downward depending on how it is fitted to the aircraft.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1968/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1967/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12852/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12851/?format=api"
            ]
        },
        {
            "ob_id": 2864,
            "uuid": "b0a893d0b4ab4f55951aa53b2ff82f11",
            "title": "Met Office: Microwave Airborne Radiometer Scanning System (MARSS)",
            "abstract": "MARSS (Microwave Airborne Radiometer Scanning System) is an along-track scanning, total power microwave radiometer which measures in five channels, two window channels at 89 and 157 GHz and three channels centred on the water vapour absorption line at 183.31 GHz.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1970/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1971/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12864/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12863/?format=api"
            ]
        },
        {
            "ob_id": 2875,
            "uuid": "61e817263d59492f8a28697e9c9077c7",
            "title": "120-degree x-wire anemometer in wind tunnel",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/1984/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12905/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/12904/?format=api"
            ]
        },
        {
            "ob_id": 2914,
            "uuid": "6a3e02251e7048c88507fc3dfeeb3c13",
            "title": "Leicester: filter radiometer j(NO2)",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2011/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2012/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13177/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13178/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/48994/?format=api"
            ]
        },
        {
            "ob_id": 2915,
            "uuid": "fab352335cdc4b9e9f231ebe916c8611",
            "title": "EMPA: TEI 409C UV absorption",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2013/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13180/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13179/?format=api"
            ]
        },
        {
            "ob_id": 2916,
            "uuid": "8f12f092b1d14fc8861dcc95d7e440d3",
            "title": "EMPA: Horiba Arma-360 (ND-IR technique)",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2014/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13182/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13181/?format=api"
            ]
        },
        {
            "ob_id": 2920,
            "uuid": "95d3f5d4e5cd4c37bda48f36a4de8aad",
            "title": "NILU: GC-FID",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2016/?format=api"
            ],
            "instrumentType": "gas_chromatograph",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13255/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13254/?format=api"
            ]
        },
        {
            "ob_id": 2921,
            "uuid": "d40506b4be3b4309af3235282eb03391",
            "title": "UEA: Packed column GC-ECD",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2017/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2018/?format=api"
            ],
            "instrumentType": "gas_chromatograph",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13257/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13256/?format=api"
            ]
        },
        {
            "ob_id": 2922,
            "uuid": "a962d4cde17e494a85851ddf89abec47",
            "title": "UEA: condensation nuclei counter",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2019/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2020/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13259/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13258/?format=api"
            ]
        },
        {
            "ob_id": 2923,
            "uuid": "2f67f2b572884de0ac8bce1e54710ba8",
            "title": "EMPA: GC-ECD",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2021/?format=api"
            ],
            "instrumentType": "gas_chromatograph",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13260/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13261/?format=api"
            ]
        },
        {
            "ob_id": 2930,
            "uuid": "c553f90bdc7d4237b899eb32d61c28dc",
            "title": "BAS: Brunauer-Emmett-Teller (BET) - Isotherm Analysis",
            "abstract": "BET theory aims to explain the physical adsorption  of gas molecules  on a solid  surface  and serves as the basis for an important analysis technique for the measurement of the specific surface area (SSA) of a material (e.g. Frost Flowers SSA).",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2030/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2031/?format=api"
            ],
            "instrumentType": "other_instrument_type",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13283/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13282/?format=api"
            ]
        },
        {
            "ob_id": 2937,
            "uuid": "0a8ea46b7d0447acb575aac9362a69ce",
            "title": "Leeds Long-Path Differential Optical Absorption Spectroscopy (LP-DOAS)",
            "abstract": "Long-path differential optical absorption spectroscopy (LP-DOAS) instrument run by the University of Leeds, School of Chemistry.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2034/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2035/?format=api"
            ],
            "instrumentType": "spectrometer",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13301/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13300/?format=api"
            ]
        },
        {
            "ob_id": 2941,
            "uuid": "0250f4670abb4b39838482d44a5c5a10",
            "title": "University of Manchester/UFAM (Universities' Facility for Atmospheric Measurement): Grimm Optical Particle Counter - formerly umist-grimm",
            "abstract": "GRIMM 1.108 dust monitor run by the University of Manchester measures the size resolved number concentration per cubic centimetre of particles in the size range of 0.3 to 20 microns (optical). By summing up the total number over all sizes, the total number concentration can be derived. The unit also has several audible alarms when operational parameters are exceeded. The unit is mains powered, but also comes complete with a battery. The unit is completely controllable from the front panel, although data logging is normally done via a PC.\r\n\r\nThis instrument measures the size resolved number concentration per cubic centimetre of particles in the size range of 0.3 to 20 microns (optical). By summing up the total number over all sizes, the total number concentration can be derived. The unit also has several audible alarms when operational parameters are exceeded.",
            "keywords": "AMF, NCAS, GRIMM, Aerosol, Optical Particle Counter, OPC, Dust monitor",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2037/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2038/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12812/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12933/?format=api"
            ],
            "instrumentType": "particle_counter",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49966/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49967/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13310/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49178/?format=api"
            ]
        },
        {
            "ob_id": 2957,
            "uuid": "036a3ba345b34425ac471333849bee93",
            "title": "UNDEFINED instrument associated with platform: Kuujjuarapik, Hudson Bay, Canada",
            "abstract": "This instrument is associated with the platform: Kuujjuarapik, Hudson Bay, Canada",
            "keywords": "",
            "identifier_set": [],
            "instrumentType": "UNDEFINED",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13352/?format=api"
            ]
        },
        {
            "ob_id": 3044,
            "uuid": "68ed3fa995e744658806be612cc03469",
            "title": "University of Leeds: SODAR no. 1",
            "abstract": "Scintec FAS64 acoustic sodar to provide winds and backscatter data from about 50 m to around 700 m above ground level depending on conditions, at 10 minute frequency.",
            "keywords": "SODAR, wind profile",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2090/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2091/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49494/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49495/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13692/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13693/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/140966/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49493/?format=api"
            ]
        },
        {
            "ob_id": 3049,
            "uuid": "af62183a558440c9a299daa7709f0847",
            "title": "University of Leeds: SODAR no. 2",
            "abstract": "Scintec FAS64 acoustic sodar to provide winds and backscatter data from about 50 m to around 700 m above ground level depending on conditions, at 10 minute frequency.",
            "keywords": "SODAR, wind profile",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2094/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2095/?format=api"
            ],
            "instrumentType": "other_instrument_type",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13705/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49497/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49496/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13704/?format=api"
            ]
        },
        {
            "ob_id": 3054,
            "uuid": "86569f5888ec4e06a9c8bb000126c0b9",
            "title": "NCAS AMF: Vaisala Radiosonde Unit 2",
            "abstract": "The National Centre for Atmospheric Science's Atmospheric Measurement Facility (NCAS AMF) operate two radiosonde sounding systems: unit one is situated at the University of Manchester and unit two at the University of Leeds, both compatible with the Vaisala RS92 sonde family and support the extended sondes recommended by Vaisala. Both systems are 400 MHz variants.\r\n\r\nAlthough now designated as NCAS AMF instruments they have each had previous designations with this unit previously been known as the \"University of Leeds: Vaisala Radiosonde\" and represented by \"leeds-radiosonde\" in filenames.\r\n\r\nVaisala radiosonde systems are used by meteorological organizations all around the world to measure weather in the Earth’s atmosphere, from the boundary layer to the upper atmosphere. The radiosonde is a lightweight, balloon-borne instrument that measures profiles of pressure, temperature and humidity from the ground to approximately 40 km. The radiosonde is equipped with a radio transmitter for sending the measurements securely to the observing station. The user has control over the sounding process by integrating sounding controls, archiving the sounding data and meteorological message creation. For routine soundings the system offers a variety of features and allows the desired balance of manual and automatic control. In addition to the traditional alphanumeric messages, the system software produces the WMO specified BUFR messages. This feature enables users to follow the WMO's recommendation to move from traditional alphanumeric codes to binary BUFR codes.\r\n\r\nThis record also records the present and previous instrument scientists responsible for the equipment (recorded here as \"operators\") for historic purposes with the current instrument scientist given last. It is possible that other operators may use the equipment from time to time and these should be recorded as dataset authors for each associated datasets in the archive.",
            "keywords": "AMF, NCAS, Upper Atmosphere, Sounding, Sonde, Profile, RS92, Vaisala, MW31",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2098/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2099/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/9533/?format=api"
            ],
            "instrumentType": "sonde",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49696/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/49695/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13717/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13716/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/108707/?format=api"
            ]
        },
        {
            "ob_id": 3068,
            "uuid": "8c6718be585044348766ae1842e1ea40",
            "title": "Manchester: TEI 42 trace level chemiluminescence NOx analyser  - formerly umist-nox",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2108/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2109/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13767/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13766/?format=api"
            ]
        },
        {
            "ob_id": 3078,
            "uuid": "03615e80c5514df9b0d7057dee191069",
            "title": "Manchester: TEI 49 UV absorption O3 analyser - formerly umist-o3",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2113/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2114/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13793/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13792/?format=api"
            ]
        },
        {
            "ob_id": 3082,
            "uuid": "b7bac77a19f346c98ebfe3fff4704314",
            "title": "UEA: TEI 49 UV absorption O3 analyser",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2116/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2117/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13803/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13802/?format=api"
            ]
        },
        {
            "ob_id": 3098,
            "uuid": "6d7f2002692345bcadaa2495c9ed9851",
            "title": "Leeds: PAN gas chromatograph",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2123/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2124/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13845/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13844/?format=api"
            ]
        },
        {
            "ob_id": 3102,
            "uuid": "68c7994734004c6da605a8cc9c75bbae",
            "title": "Leicester: filter radiometer j(O1D)-a",
            "abstract": "Homemade Filter Radiometer",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2126/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2127/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13855/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13854/?format=api"
            ]
        },
        {
            "ob_id": 3106,
            "uuid": "b5fbf1e7be194a93bff4561081c5fbbe",
            "title": "Leicester: Temperature sensor Rotronic MP103A",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2129/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2130/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13865/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13864/?format=api"
            ]
        },
        {
            "ob_id": 3110,
            "uuid": "8431230e0f504d9ba12b3832876ca0d8",
            "title": "Leicester: Spectral Radiometer CH3CHO",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2132/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2133/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13875/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13874/?format=api"
            ]
        },
        {
            "ob_id": 3114,
            "uuid": "39ef3611485e4f79b5458d7e2ad3708d",
            "title": "Leicester: Spectral Radiometer CH3COCH3",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2136/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2135/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13885/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13884/?format=api"
            ]
        },
        {
            "ob_id": 3118,
            "uuid": "f7e7d68cd48945fda2f5b0c49521bad6",
            "title": "Leicester: Spectral Radiometer j(HCHO-NR)",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2138/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2139/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13895/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13894/?format=api"
            ]
        },
        {
            "ob_id": 3122,
            "uuid": "b0495cd90b6248cd8c77926e7ff0c0e2",
            "title": "Leicester: Spectral Radiometer j(HCHO-R)",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2141/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2142/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13905/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13904/?format=api"
            ]
        },
        {
            "ob_id": 3126,
            "uuid": "812a4d712f5544b6a6bc1842c0883be5",
            "title": "Leicester: Spectral Radiometer j(HONO)",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2144/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2145/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13915/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13914/?format=api"
            ]
        },
        {
            "ob_id": 3143,
            "uuid": "c9c816cc181e45798244cb0ccaf379d2",
            "title": "UEA: Gas Chromotography Negative Ion Chemical Ioisation Mass Spectrometry",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2156/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2157/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13960/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/13959/?format=api"
            ]
        },
        {
            "ob_id": 3165,
            "uuid": "b8d00e2ad8024af1ba3b61db7480742c",
            "title": "Manchester/UFAM: Hygroscopicity Tandem Differential Mobility Analyser - formerly umist-htdma",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2165/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2166/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14018/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14017/?format=api"
            ]
        },
        {
            "ob_id": 3181,
            "uuid": "1c6e1009510e4e25bfc549ebe7f6ff52",
            "title": "York: 2 Dimensional GC-fid",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2172/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2173/?format=api"
            ],
            "instrumentType": "gas_chromatograph",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14060/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14059/?format=api"
            ]
        },
        {
            "ob_id": 3218,
            "uuid": "2481950623d54fdf84eb8653ed2440c1",
            "title": "UEA: Aerolaser CO",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2186/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2187/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14158/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14157/?format=api"
            ]
        },
        {
            "ob_id": 3252,
            "uuid": "c501a3c5fc734beaaf37015f6f755d49",
            "title": "Leicester: Spectral Radiometer j(CH3COOH)",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2199/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2200/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14248/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14247/?format=api"
            ]
        },
        {
            "ob_id": 3262,
            "uuid": "c4359adfb9614a7fafbf50305d70af22",
            "title": "Leicester: Spectral Radiometer j(PAN)",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2204/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2205/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14274/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14273/?format=api"
            ]
        },
        {
            "ob_id": 3266,
            "uuid": "34cd7a4171154f348af49d5bd527346b",
            "title": "Leicester: Spectral Radiometer j(H2O2)",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2207/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2208/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14284/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14283/?format=api"
            ]
        },
        {
            "ob_id": 3270,
            "uuid": "610c5b7e952e4385958b01e28d2bd6b9",
            "title": "Leicester: Spectral Radiometer j(HNO3)",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2210/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2211/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14294/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14293/?format=api"
            ]
        },
        {
            "ob_id": 3275,
            "uuid": "3cfb0135d67a49da8db07dde8d27385c",
            "title": "Bristol: GC-MS hydrocarbons",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2215/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2216/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14317/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14318/?format=api"
            ]
        },
        {
            "ob_id": 3324,
            "uuid": "d4dcb505703b403284b4432d6cb76d88",
            "title": "Stratospheric Aerosol and Gas Experiment I  (SAGE-I)",
            "abstract": "The Stratospheric Aerosol and Gas Experiment I (SAGE)      \nwas carried aboard the Applications Explorer Mission-2 (AEM-2) spacecraft. SAGE I data collection began February 21, 1979. Four months after launch, a spacecraft power subsystem problem forced data collection to be limited thereafter to sunsets only.  Limited operation continued until November 18, 1981, when the spacecraft power system forced termination of the experiment.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2236/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2235/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14431/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14430/?format=api"
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            "title": "VISSR Atmospheric Sounder (VAS)",
            "abstract": "GOES-4, -5, -6, and -7 carry an advanced Visible and Infrared Spin-Scan Radiometer (VISSR) Atmospheric Sounder (VAS), which can obtain atmospheric soundings as well as VISSR images.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2244/?format=api",
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            "uuid": "6d6f1df9d72a40cba973c55f88e2c160",
            "title": "vertically facing thermophile radiometer",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2257/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2258/?format=api"
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            "instrumentType": "radiometer",
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            "responsiblepartyinfo_set": [
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                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14500/?format=api"
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        },
        {
            "ob_id": 3373,
            "uuid": "a41deca1f34a40dcbe3155fd2aded146",
            "title": "Pyrheliometer",
            "abstract": "An instrument that measures the amount of solar radiation by converting the heat of the sunlight into a voltage using a device called a thermopile, and a recording voltmeter.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2269/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2270/?format=api"
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            "instrumentType": "met_sensor",
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            "responsiblepartyinfo_set": [
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                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14544/?format=api"
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        {
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            "uuid": "3068d0ab9fbd47debd89a9cca0c5039a",
            "title": "Non-dispersive IR gas analyser with a water vapor freeze trap",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2284/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2285/?format=api"
            ],
            "instrumentType": "instrument",
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            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14596/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14595/?format=api"
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        },
        {
            "ob_id": 3403,
            "uuid": "683e8953317142c198ba1688661799bd",
            "title": "UNOR-2 semi-automatic non-dispersive IR gas analyser",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2292/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2293/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14636/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14635/?format=api"
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        },
        {
            "ob_id": 3408,
            "uuid": "0f53827f661141ecae4721353d77bc84",
            "title": "gas chromatograph with a flame ionization detector",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2297/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2298/?format=api"
            ],
            "instrumentType": "gas_chromatograph",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14649/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14648/?format=api"
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        },
        {
            "ob_id": 3413,
            "uuid": "aa99d66f20ba48bab52a3ada2ab444e5",
            "title": "Radio Telescope",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2302/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2303/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14662/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14661/?format=api"
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        },
        {
            "ob_id": 3450,
            "uuid": "e14fce0e9415402d85c164ad3816edd2",
            "title": "Soviet Union M-83 Ozonometer",
            "abstract": "Instrument.abstract: DETAILS NEEDED",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2325/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2326/?format=api"
            ],
            "instrumentType": "spectrometer",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14766/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14765/?format=api"
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        },
        {
            "ob_id": 3454,
            "uuid": "4d45d8b3b50e4c97b3f254fc120cf072",
            "title": "Umkehr instrument",
            "abstract": "The Umkehr method is ground based optical remote sensing.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2328/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2329/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14777/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14776/?format=api"
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        {
            "ob_id": 3466,
            "uuid": "7bfa640a5e484d7a8241e6ce6190aa01",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Meteorological Particle Sensor",
            "abstract": "The meteorological particle sensor works by imaging individual particulates, including rain, snow and hail, and measuring their size. The meteorological particle sensor was manufactured by Droplet Measurement Technologies, Inc. (USA). It was deployed at Sparsholt College from 2004 to 2007 and has been deployed at Chilbolton since 2009.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2345/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2346/?format=api"
            ],
            "instrumentType": "met_sensor",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14819/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14818/?format=api"
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        {
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            "uuid": "c78879b868aa44f4adf715ab368c02e4",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Meteorological Sensors",
            "abstract": "Standard meteorological measurements are made at Chilbolton in support of all experiments at the Observatory. The measurements provided in this dataset are temperature, dew point, pressure, wind speed and wind direction. The instruments used are: General Eastern Temperature and Dew Point Sensor, KDG Pressure Transducer, Vector Instruments A100H Anemometer, Vector Instruments W200 Windvane.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2349/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2350/?format=api"
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            "instrumentType": "instrument",
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            "responsiblepartyinfo_set": [
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                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14836/?format=api"
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        {
            "ob_id": 3480,
            "uuid": "36678054fee14266b208776b9be5bf43",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Cloud Camera",
            "abstract": "The JVC KYF55-BE digital camera is used to collect sky images. Twelve images are stored every hour, three taken every 15 minutes. Images from the cloud camera are a useful tool to assist researchers in analysing data obtained from the other instruments a the Chilbolton Observatory site. Note, this instrument was initially deployed at the Sparsholt College site, before being relocated to the main Chilbolton Observatory. It ceased operation in 2014 and was subsequently replaced by a new sky camera with a fish eye lens for full sky imaging.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2353/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2354/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14855/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14854/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76319/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76318/?format=api"
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        },
        {
            "ob_id": 3484,
            "uuid": "1faa145737544fa0bd13b9e5e17c02ad",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Multiple Raingauges",
            "abstract": "Data are provided from 2 types of raingauge, drop-counting and tipping-bucket. Until September 2004 the 2nd standard drop-counter was on the roof of a portakabin at the site. Since then it has been placed within a circular low turf wall enclosure of 3 m diameter on the ground, which is considered to provide a suitable environment for accurate measurements of rainfall. The wall is 0.45 m high, with steep internal and sloping external sides. The remaining 2 gauges have been on the ground for the duration of the measurements. The Sparsholt multiple gauge files contain standard drop-counter gauge data and tipping-bucket gauge data.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2356/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2357/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14865/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14864/?format=api"
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        },
        {
            "ob_id": 3491,
            "uuid": "65be4f1b5d854a8fb6ba4d4e6258e98d",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Drop-counting raingauge",
            "abstract": "Rapid response drop-counting raingauges have been developed at the Chilbolton Observatory to give measurements of every drop rather than every tip of a bucket at high time resolution: 10 seconds.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2360/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2361/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14883/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14882/?format=api"
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        },
        {
            "ob_id": 3498,
            "uuid": "76d384ce72fe4453a1483c5556739a5b",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Infra-red radiometer",
            "abstract": "The CG4 pyrgeometer is designed for high accuracy infrared (IR) meteorological measurement research, for both sky and surface emitted infrared radiation, from 4.5 to 42 µm. It provides a voltage output signal that is proportional to either the incoming sky, or surface emitted IR, depending on instrument mode of operation. The CG4 features a specially designed ellipse shaped solar blind silicon dome, that offers a full 180o field of view, and with good cosine response.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2364/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2365/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14901/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14900/?format=api"
            ]
        },
        {
            "ob_id": 3502,
            "uuid": "2dc3645501db40d38702b5f8c5c0eaf0",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Microwave radiometers",
            "abstract": "A number of microwave radiometers have been constructed by RCRU engineers and installed at Chilbolton. The radiometers measure zenith sky brightness temperature at a number of frequencies, 22.2, 28.8 and 37.5 GHz. Scientists use these measurements to find out the total integrated liquid water path (LWP) and total precipitable water vapour (WVP), in the atmosphere above the radiometers.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2367/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2368/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14911/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14910/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/140424/?format=api"
            ]
        },
        {
            "ob_id": 3506,
            "uuid": "6138022efeb0443284607538c3339306",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Visible radiometer",
            "abstract": "The CM21 pyranometer is intended for high accuracy total global, or diffuse sky, solar radiation measurement research on a plane/level surface, for extreme temperature environments.\r\nCM21 Features & Benefits:\r\nLow dome thermal offset error\r\nExcellent cosine/directional response\r\nExcellent long term stability of sensitivity\r\nExcellent linearity performance\r\nExcellent temperature dependence performance",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2370/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2371/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14921/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14920/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/140973/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/140974/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/51039/?format=api"
            ]
        },
        {
            "ob_id": 3510,
            "uuid": "96bf214dac4d4385aaa31d155b8a464f",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) South Wonston to Sparsholt 5 km 38 GHz Radio Link",
            "abstract": "Monitoring is taking place of the signal levels of several links at frequencies of 38, 54 and 56 Ghz which run from the South Wonston water tower on the A34 to Sparsholt College. The links are within coverage of the Chilbolton Advanced Meteorological Radar.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2373/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2374/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14931/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14930/?format=api"
            ]
        },
        {
            "ob_id": 3514,
            "uuid": "f8602c6a57574e23aa4887c4eeef0cba",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) South Wonston to Sparsholt 5 km 54 GHz Radio Link",
            "abstract": "Monitoring is taking place of the signal levels of several links at frequencies of 38, 54 and 56 Ghz which run from the South Wonston water tower on the A34 to Sparsholt College. The links are within coverage of the Chilbolton Advanced Meteorological Radar.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2376/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2377/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14941/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14940/?format=api"
            ]
        },
        {
            "ob_id": 3518,
            "uuid": "9712fa009a6c451e988a042607b2a440",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) South Wonston to Sparsholt 5 km 56 GHz Radio Link",
            "abstract": "Monitoring is taking place of the signal levels of several links at frequencies of 38, 54 and 56 Ghz which run from the South Wonston water tower on the A34 to Sparsholt College. The links are within coverage of the Chilbolton Advanced Meteorological Radar.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2379/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2380/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14951/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14950/?format=api"
            ]
        },
        {
            "ob_id": 3522,
            "uuid": "19091aee8d4f4c91ac1239ec2aa2e7d8",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) AXIS2100 Cloud Camera",
            "abstract": "A second camera has been installed at Chilbolton pointing horizontally. The Axis 2100 camera is used to collect sky images. Images are stored every 5 minutes. Daily weather movies are made from the collected images.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2382/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2383/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14960/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14961/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76316/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/76317/?format=api"
            ]
        },
        {
            "ob_id": 3526,
            "uuid": "7c77374a937149caa76b6296672a9b93",
            "title": "GBS (Global Broadcast Service) satellite receivers",
            "abstract": "A satellite receiver used to collect signals from the GBS (Global Broadcast Service) satellite and perform studies of atmospheric effects. Operated at 20.7 GHz.",
            "keywords": "",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2386/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2387/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14977/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/14976/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45389/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/45388/?format=api"
            ]
        },
        {
            "ob_id": 3533,
            "uuid": "eaa75c7465a64d69bd1547357d2ee445",
            "title": "Chilbolton Facility for Atmospheric and Radio Research (CFARR) Disdrometer",
            "abstract": "Disdrometers measure the drop size distribution of rain. Two Distromet Joss Waldvogel Impact Disdrometer RD-69 are installed at Chilbolton and Sparsholt and work by converting the vertical momentum of a falling drop into signals whose amplitude depends on the diameter of the impacting drop. A conical styrofoam body is used to transmit the mechanical impulse of an impacting drop to a set of two moving coil systems in magnetic fields.",
            "keywords": "sonic anemometer",
            "identifier_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2391/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/2392/?format=api"
            ],
            "instrumentType": "instrument",
            "subInstrument": [],
            "responsiblepartyinfo_set": [
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15001/?format=api",
                "https://api.catalogue.ceda.ac.uk/api/v2/rpis/15000/?format=api"
            ]
        }
    ]
}