Observation Instance – Django REST framework

Get a list of Observation objects.

### Available end points:

- `/observations/` - Will list all Results in the database
- `/observations.json` - Will return all Results in json format. This can
also be achieved by using the accept header. `application/json`
- `/observations/<object_id>/` - Returns Results object with that id

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `title`
- `uuid`
- `keywords`
- `status`
- `result_field`
- `discoveryKeywords`
- `updateFrequency`
- `nonGeographicFlag`
- `publicationState`
- `permissions`

### How to use filters:

These filters can be used like django query filters using __ for related model relationships.

- `/observations/?uuid=d594d53df2612bbd89c2e0e770b5c1a0`
- `/observations/?status=completed`
- `/observations/?results_field__dataPath__startswith=/neodc/esacci`
- `/observations/?discoveryKeywords__name=ESACCI`
- `/observations/?nonGeographicFlag=True`

Filters can be stacked to build an 'AND' relationship. E.g.

- `/observations/?publicationState__in=published,citable&nonGeographicFlag=True`
- `/observations/?publicationState__in=published,citable&discoveryKeyword__name=NDGO0003`

GET /api/v2/observations/27558/?format=api

HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 27558,
    "uuid": "ae483e02e5c345c59c2b72ac46574103",
    "title": "Deriving Emissions related to Climate Change Network: CO2, CH4, N2O, SF6, CO and halocarbon measurements from Tacolneston Tall Tower, Norfolk",
    "abstract": "Measurements of carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), sulfur hexafluoride (SF6), carbon monoxide (CO) and a suite of halocarbons and other trace gases have been taken at Tacolneston tall tower as part of the UK DECC (Deriving Emissions linked to Climate Change) Network. \r\n\r\nTacolneston (TAC) is a rural UK site located on the in the east of England, 16 km south-west of Norwich (population ~200,000), and 32 km east of Thetford (population ~20,000), in Norfolk, UK.\r\n\r\nThree gas chromatography instruments measured atmospheric N2O, SF6, CO, H2 and other trace gas species from an inlet positioned at a height of 100 m above ground level between 2012-01-01 and 2017-03-09. The inlet height was then changed to 185 m above ground level. Two instruments (GC-RGA and GC-ECD) were decommissioned on 2018-03-13. The remaining two continue to operate. Two laser-based instruments have been used to measure CO2, CH4, N2O and CO from inlet heights of 54 m, 100 m, and 185 m above ground level. Due to the location of the site, far from strong sources of local pollution, measurements from this site can be used to calculate emission maps of trace gas species in the UK in combination with other measurement stations in the UK (Bilsdale, Ridge Hill and Heathfield) and Ireland (Mace Head).\r\n\r\nThis work was funded by  Business Energy and Industrial Strategy (BEIS) contracts TRN1028/06/2015 and TRN1537/06/2018 to the University of Bristol.",
    "keywords": "UK-DECC, Tacolneston, trace gases",
    "publicationState": "published",
    "dataPublishedTime": "2019-09-04T10:07:30",
    "doiPublishedTime": null,
    "updateFrequency": "",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/27554/?format=api",
        "dataPath": "/badc/uk-decc-network/data/previous_versions/Tacolneston",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 711091031,
        "numberOfFiles": 120,
        "fileFormat": "NetCDF"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/7392/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2399/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/1633/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23442/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23445/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23446/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23448/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23449/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/23451/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25429/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25430/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25431/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25432/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25433/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25434/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25435/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25595/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25596/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25603/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25604/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25605/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25606/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25607/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25608/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25609/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25611/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25612/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25613/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25616/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25618/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25619/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25620/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25621/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25622/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25623/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25633/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25634/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25635/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25638/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25639/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25640/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25641/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25642/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25643/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25644/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25645/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25646/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25647/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25648/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25649/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25650/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25651/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25652/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25653/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25654/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25655/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25656/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25657/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25658/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25660/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25662/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25663/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25664/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25665/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25666/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25667/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25669/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25670/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25671/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25672/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25674/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25677/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25701/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25702/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25703/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25704/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/25708/?format=api"
    ],
    "dataLineage": "Data were collected by the University of Bristol and deposited at the Centre for Environmental Data Analysis (CEDA) for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/27561/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/27499/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115250/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115253/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115254/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115251/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115256/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115252/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115247/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115255/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115290/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115248/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179847/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179879/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179880/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179881/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179882/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179883/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179884/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/179885/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/27796/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2526/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}