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/37365/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 37365,
    "uuid": "9fb47f1d6d294b0dba553adc2253e6cf",
    "title": "Idealised climate model simulations for the Iceland Greenland Sea's Project (IGP)",
    "abstract": "This dataset contains idealised climate model simulations for the Atmospheric Forcing of the Iceland Sea (AFIS) project  which was the UK component, funded by NERC, of the Iceland Greenland Sea's Project (IGP).  The UK Met Office Unified Model (MetUM) version 10.6 with a regional nested domain was used to carry out a suite of simulations of the atmosphere over the NE North Atlantic region. The set up of the MetUM uses the Global Atmosphere 6 and Global Land 6 (GA6/GL6)  configurations including the ENDGame dynamical core.\r\nModel simulations were run on the Met Office supercomputer accessed through Monsoon.  \r\n\r\nThis dataset contains the output for one of 7 model outputs. \r\nThese are:\r\nTemperature - 1.5m Surface Temperature output from themodel simulations.\r\nLatent HF - Latent Heat Flux output from the model simulations.\r\nSensible HF - Sensible Heat Flux output from the model simulations.\r\nRelative Humidity - Relative Humidity output from the model simulations.\r\nSpecific Humidity - Specific Humidity output from the model simulations.\r\nSurface Winds - 10 m U and V wind component output from the model simulations.\r\nMSLP - Mean Sea Level Pressure output from the model simulations.\r\n\r\nA list of papers related to this dataset can be found in the linked online resources on this record.",
    "keywords": "IGP, AFIS, MetUM",
    "publicationState": "published",
    "dataPublishedTime": "2023-08-10T14:17:11",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "ongoing",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/37366/?format=api",
        "dataPath": "/badc/igp/data/IGP_climate_model/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 136695138100,
        "numberOfFiles": 457,
        "fileFormat": "Data are NetCDF formatted.\r\n\r\nFiles ending _daymean.nc or ydaymean.nc were processed using CDO.  the CDO command that the filename ends with.  IE for MSLP, the file u_au087_MSLP_9110_daymean.nc was created using\r\n\r\ncdo daymean u_au087_MSLP_9110.nc u_au087_MSLP_9110_daymean.nc\r\n\r\nThe folder splitmon used the CDO command splitmon to break each file down into January, February, March and April, identified by the suffix 01, 02, 03 and 04 respectively.  Daymean and ydaymean versions were created."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/11210/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/3465/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/11573/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13296/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52761/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54871/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55254/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/59037/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/59038/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62353/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66241/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70295/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70868/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70869/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70870/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70871/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70872/?format=api"
    ],
    "dataLineage": "The model simulations were run by James Pope when he was employed on the IGP project at the British Antarctic Survey.  Model simulations were run on the Met Office supercomputer accessed through Monsoon.  As of July 2019, James Pope is employed by the Met Office and can be contacted at james.pope@metoffice.gov.uk. These data were then supplied to CEDA for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/24899/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/27445/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178520/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178513/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178514/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178515/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178516/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178517/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178518/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/178519/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": null,
    "procedureComputation": "https://api.catalogue.ceda.ac.uk/api/v2/computations/37367/?format=api",
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2543/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "registered",
            "accessRoles": null,
            "label": "registered: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/missing_licence.pdf",
            "licenceClassifications": "unstated"
        }
    ],
    "discoveryKeywords": []
}