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

### Available end points:

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

### Available Methods:

- `GET`
- `HEAD`

### Available filters:

- `uuid`
- `title`
- `keywords`
- `discoveryKeywords`
- `publicationState`

### How to use filters:

- `/observationcollections/?uuid=ab4ca8d019d148f78afba1cd20872bdd`

- `/observationcollections.json?publicationState=citable`

GET /api/v2/observationcollections/556/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 556,
    "uuid": "c06ec960d55c69e787ca339022e59c6c",
    "title": "Stratospheric Aerosol and Gas Experiment III (SAGE III): Global Profiles of Aerosols and Clouds, Ozone, Nitrogen Dioxide and Water Vapour",
    "abstract": "This dataset collection contains global profiles of aerosols and clouds, ozone, nitrogen dioxide and water vapour from the Stratospheric Aerosol and Gas Experiment III (SAGE III) instrument on board a Meteor-3M spacecraft, launched on December 10, 2001. Routine measurement operations began in March 2002 until the SAGE III mission was terminated in March 2006. \r\n\r\nThe specific measurement objectives of SAGE III provided 1 km vertical resolution profiles of: aerosols and clouds at seven wavelengths from the mid-troposphere into the stratosphere and, where appropriate, the mesosphere; O3 from the mid-troposphere to 85 km; H2O from the planetary boundary layer to 50 km; NO2 from the tropopause to 45 km; NO3 from 20 to 55 km; OClO from 15 to 25 km; and, O2 from the mid-troposphere to 70 km.",
    "keywords": "SAGE III, aerosols, clouds, ozone, water vapour, nitrogen dioxide",
    "discoveryKeywords": [
        1138
    ],
    "publicationState": "published",
    "dataPublishedTime": "2006-12-10T03:19:15",
    "doiPublishedTime": null,
    "member": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/557/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19679/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19681/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19683/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19685/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19688/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19690/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19692/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19694/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19695/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19698/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19700/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19702/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19704/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19706/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observations/19707/?format=api"
    ],
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/391/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/392/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/10448/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1580/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1581/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1582/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1583/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1586/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43621/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/1579/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43623/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/43622/?format=api"
    ]
}