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/19839/?format=api

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

{
    "ob_id": 19839,
    "uuid": "abc997f656d64ad384dab3ea88a3441f",
    "title": "APPRAISE ADIENT and EM25: Chilbolton Facility for Atmospheric and Radio Research (CFARR) UV Raman Lidar Data",
    "abstract": "The objective of the ADIENT (Appraising the Direct Impacts of aErosol oN climaTe) project was quantifying the direct effect of aerosols on the Earth's radiation budget, via scattering and/or absorption of radiation.\r\n\r\nThe Emissions around the M25 motorway (EM25) campaign took place over the megacity of London in the United Kingdom in June 2009 with the aim of characterising trace gas and aerosol composition and properties entering and emitted from the urban region\r\n\r\nData have been collected by the Ultra-violet Raman lidar at Chilbolton Observatory, Hampshire. The dataset contains measurements of attenuated backscatter coefficients of aerosols within the atmosphere, and humidity mixing ratios. Plots of the attenuated backscatter coefficient, and of the humidity mixing ratios, at different heights are also available.",
    "keywords": "ADIENT, EM25, CFARR, Chilbolton, Raman lidar, UV",
    "publicationState": "working",
    "dataPublishedTime": null,
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/19840/?format=api",
        "dataPath": "/badc/appraise/data/adient/cfarr-lidar-uv/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 35709236,
        "numberOfFiles": 33,
        "fileFormat": "Data are netCDF formatted"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/5193/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/63/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/22455/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54654/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54655/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54656/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54657/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54658/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54659/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54660/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54661/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54662/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54664/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54665/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54666/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/54667/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55839/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55840/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55842/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55843/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55844/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/55845/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/69203/?format=api"
    ],
    "dataLineage": "Data are prepared by Chilbolton Facility for Atmospheric and Radio Research (CFARR) staff prior to submission to BADC for archiving.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/6521/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/19826/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/19827/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/12228/?format=api"
    ],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75275/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75273/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75274/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75276/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75277/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75278/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75271/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75272/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75279/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75280/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75281/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75282/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/75283/?format=api"
    ],
    "procedureAcquisition": "https://api.catalogue.ceda.ac.uk/api/v2/acquisitions/3575/?format=api",
    "procedureCompositeProcess": null,
    "procedureComputation": null,
    "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": []
}