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/27515/?format=api

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

{
    "ob_id": 27515,
    "uuid": "79dd8e867b5a4bc28527118aae306095",
    "title": "ESA Sea Surface Temperature Climate Change Initiative (SST_cci): Advanced Very High Resolution Radiometer (AVHRR) Level 3 Uncollated (L3U) Climate Data Record version 2.0",
    "abstract": "This v2.0 SST_cci Advanced Very High Resolution Radiometer (AVHRR) level 3 uncollated data (L3U) Climate Data Record (CDR) consists of stable, low-bias sea surface temperature (SST) data from the AVHRR series of satellite instruments.  It covers the period between 08/1981 - 12/2016. This Level 3 Uncollated (L3U) product provides these SST data on a 0.05 regular latitude-longitude grid with a single orbit per file. \r\n\r\nThe dataset has been produced as part of the European Space Agency (ESA) Climate Change Initiative Sea Surface Temperature project(ESA SST_cci). The data products from SST CCI accurately map the surface temperature of the global oceans over the period 1981 to 2016 using observations from many satellites. The data provide independently quantified SSTs to a quality suitable for climate research.\r\n\r\nData are made freely and openly available under a Creative Commons License by Attribution (CC By 4.0) https://creativecommons.org/licenses/by/4.0/ .",
    "keywords": "",
    "publicationState": "citable",
    "dataPublishedTime": "2019-08-02T21:43:14",
    "doiPublishedTime": "2019-08-22T12:25:34",
    "updateFrequency": "notPlanned",
    "status": "superseded",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/27516/?format=api",
        "dataPath": "/neodc/esacci/sst/data/CDR_v2/AVHRR/L3U/v2.0/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 3311877473473,
        "numberOfFiles": 364921,
        "fileFormat": "Data are in NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/7387/?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/50415/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50417/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52527/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52529/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52530/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52532/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52535/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52536/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52539/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52540/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52542/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52543/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52545/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52547/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57984/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57985/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57986/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57987/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57988/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57989/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/59109/?format=api"
    ],
    "dataLineage": "Data were processed by the ESA CCI SST project team and supplied to the Centre for Environmental Data Analysis (CEDA) for archiving in the context of the ESA CCI Open Data Portal project and the National Centre for Earth Observation (NCEO).",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/10579/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/11008/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/11005/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/30128/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115020/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115017/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115018/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115025/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115015/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115019/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115021/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115023/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115026/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/115382/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/27588/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2523/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_sst_terms_and_conditions_v2.pdf",
            "licenceClassifications": ""
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}