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/40863/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 40863,
    "uuid": "f4151599eb7b491c9f4ce75489eb8b1e",
    "title": "ESA Sea Surface Temperature Climate Change Initiative (SST_cci): Sea and Land Surface Temperature Radiometer (SLSTR) Level 2 Pre-processed (L2P) product, version 3.0",
    "abstract": "This dataset provides global sea surface temperatures (SST) from Sea and Land Surface Temperature Radiometers (SLSTR), presented on the native geometry of observation, and spanning 2016 to 2021. \r\n\r\nThe SST CCI SLSTR product contains two different SST estimates. The first is the skin temperature of the water at the time it was observed. The second is an estimate of the temperature at 20 cm depth at either 1030h or 2230h local time, which closely approximates the daily mean SST. Each SST value has an associated total uncertainty estimate, and uncertainty estimates for various contributions to that total. \r\n\r\nThe dataset has been produced as part of the version 3 Climate Data Record (CDR) produced by the European Space Agency (ESA) Climate Change Initiative Sea Surface Temperature project (ESA SST_cci). The CDR accurately maps the surface temperature of the global oceans over the period 1980 to 2021 using observations from many satellites, with a high degree of independence from in situ measurements. 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/ \r\n\r\nWhen citing this dataset please also cite the associated data paper:  \r\n\r\nEmbury, O., Merchant, C.J., Good, S.A., Rayner, N.A., Høyer, J.L., Atkinson, C., Block, T., Alerskans, E., Pearson, K.J., Worsfold, M., McCarroll, N., Donlon, C. Satellite-based time-series of sea-surface temperature since 1980 for climate applications. Scientific Data 11, 326 (2024). https://doi.org/10.1038/s41597-024-03147-w",
    "keywords": "ESA, CCI, SST, SLSTR, L2P",
    "publicationState": "citable",
    "dataPublishedTime": "2024-05-16T08:02:02",
    "doiPublishedTime": "2024-05-16T13:22:16",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/41651/?format=api",
        "dataPath": "/neodc/eocis/data/global_and_regional/sea_surface_temperature/CDR_v3/SLSTR/L2P/v3.0/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 5489899353001,
        "numberOfFiles": 1208393,
        "fileFormat": "netCDF-4 classic following: Climate and Forecast (CF) metadata conventions, GHRSST Data Specification 2.0, and SST CCI Product Specification."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/11568/?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/52527/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52531/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/52533/?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/52545/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/57989/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66261/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66262/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66264/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66265/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66266/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66267/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66268/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66269/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66270/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66271/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66272/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66276/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66277/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66278/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/66279/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74117/?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.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12913/?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/41661/?format=api",
        "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/198763/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198764/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198765/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198766/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198767/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198768/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198769/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198770/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/202199/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/41650/?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": []
}