GET

Observation Instance

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/11019/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 11019,
    "uuid": "c69013e492b4412380630ed77bee9543",
    "title": "Mars Analysis Correction Data Assimilation (MACDA): MGS/TES v1.0",
    "abstract": "This dataset contains basic gridded atmospheric and surface variables for the planet Mars over three martian years (a martian year is 1.88 terrestrial years), as produced by data assimilation of spacecraft observations. Each file in the dataset spans 30 martian mean solar days (sols) during the science mapping phase of the National Aeronautics and Space Administrations's (NASA) Mars Global Surveyor (MGS) spacecraft, between May 1999 and August 2004. The dataset is produced by the re-analysis of Thermal Emission Spectrometer (TES) retrievals of nadir thermal profiles and total dust opacities, using the Mars Analysis Correction Data Assimilation (MACDA) scheme in a Mars global circulation model (MGCM). The MGCM used is the UK spectral version of the model developed by the Laboratoire de Meteorologie Dynamique in Paris, France. MACDA is a collaboration between the University of Oxford and The Open University in the UK.",
    "keywords": "Mars, Martian, MGCM",
    "publicationState": "citable",
    "dataPublishedTime": "2011-08-25T10:29:09",
    "doiPublishedTime": "2011-11-29T12:00:00",
    "updateFrequency": "notPlanned",
    "status": "superseded",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/11020/?format=api",
        "dataPath": "/badc/mgs/data/macda/v1-0",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 18577504187,
        "numberOfFiles": 64,
        "fileFormat": "&lt;div property=\"cedacat:formats\"&gt;\n&lt;div class=\"formats\"&gt;Data availability and file format&lt;/div&gt;\nData are freely available to all registered BADC users, subject to due credit being given to the data provider. The data themselves are held in CF-NetCDF format.&lt;br /&gt;\n&lt;p&gt;The actual data can be found by following the link to the 'MACDA data directory' in the Online References section below, or going directly to http://badc.nerc.ac.uk/browse/badc/mgs/data/macda . &lt;/p&gt;&lt;p&gt;Once you are there, if you are already a registered BADC user, simply click on 'Logon to BADC' and use your BADC username and password. You will then be directed to the main /badc/mgs/data/macda directory from which you can download the dataset files. &lt;/p&gt;&lt;p&gt;If you are a new user, go first to http://badc.nerc.ac.uk/reg/user_register_info.html and register yourself to obtain a BADC username and password, then follow the steps above. &lt;/p&gt;&lt;p&gt;For any problem, please send an email to the contacts below or contact BADC directly (http://badc.nerc.ac.uk/help/contact.html) \n&lt;/p&gt;&lt;/div&gt;\n\n\n"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3061/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/1/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50559/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50561/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/60438/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92745/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92746/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92747/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92748/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92749/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92750/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92751/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92752/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92753/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/92754/?format=api"
    ],
    "dataLineage": "Data provided to the British Atmospheric Data Centre (BADC) by Luca Montabone in August 2011. Mars Global Surveyor/ Thermal Emission Spectrometer retrievals have been provided by Michael D. Smith (National Aeronautics and Space Administration, Goddard Space Flight Center, Greenbelt, MD, USA) to the University of Oxford in 2005.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/7366/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/8399/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/11610/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/11018/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39779/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39777/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39780/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39781/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39782/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47507/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47510/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39778/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47509/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47508/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/39783/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47511/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/47512/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/11616/?format=api",
    "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"
        }
    ]
}