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/6667/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 6667,
    "uuid": "85fd404a6ddf01423868172d2a2274de",
    "title": "Cascade: Africa-12km zfdya model run data",
    "abstract": "Cascade was a NERC funded consortium project to study organized convection and scale interactions in the tropical atmosphere using large domain cloud system resolving model simulations. This dataset contains data from the zfdya simulation which ran using the Met Office Unified Model (UM) at 12km horizontal resolution over the domain 20W-20E, 5S-28N which encompasses the west african monsoon.  Cascade Africa simulations are used to study African Easterly Waves.\r\n\r\nThis dataset contains 12km Africa model measurements from zfdya runs. ",
    "keywords": "Cascade, atmosphere, UM, Unified Model",
    "publicationState": "published",
    "dataPublishedTime": "2014-09-22T06:26:51",
    "doiPublishedTime": null,
    "updateFrequency": "unknown",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/6668/?format=api",
        "dataPath": "/badc/cascade/data/Africa-12km/xfdya",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 295537941713,
        "numberOfFiles": 911,
        "fileFormat": "Data are netCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/3874/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/931/?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/7025/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9051/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9052/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9053/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9054/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9055/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9056/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9057/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9058/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9059/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9060/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9061/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9062/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9063/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9064/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9065/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9066/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9067/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9068/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9069/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9070/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9071/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9072/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9073/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9074/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9075/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9076/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9077/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9078/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9079/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9080/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9081/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9082/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9083/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9084/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9085/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9086/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9087/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9088/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9089/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9090/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9091/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9092/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9093/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9094/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9095/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9096/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9097/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9098/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9099/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9100/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9101/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9102/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9103/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9104/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9105/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9106/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9107/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9108/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9109/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9110/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9111/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9112/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9113/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9114/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9115/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9116/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9117/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9118/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9119/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9120/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9121/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9122/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9123/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9124/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9125/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9126/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9127/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9128/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9129/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9130/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9131/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9132/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9133/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9134/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9135/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9136/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9137/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9138/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9139/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9140/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9141/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9142/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9143/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9144/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9145/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9146/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9147/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9148/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9149/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/9150/?format=api"
    ],
    "dataLineage": "Data were generated using the Met Office Unified Model (UM) at 12km horizontal resolution over the domain 20W-20E, 5S-28N. Cascade data has been converted to CF-netCDF by the cascade team using one of two tools: UKMOIDL or xconv, then passed on to the BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/4368/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/14742/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/6666/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28683/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28684/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28685/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28687/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28681/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28686/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28680/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/28682/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/7778/?format=api",
    "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"
        }
    ]
}