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/27606/?format=api

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

{
    "ob_id": 27606,
    "uuid": "1326447659e34bc3ba8042041ca0546b",
    "title": "FIDUCEO: Advanced Very-High-Resolution Radiometer (AVHRR ) Climate Data Record for Aerosol Optical Depth, V1.0, 2003 -2012",
    "abstract": "The Fidelity and uncertainty in climate data records from Earth Observations (FIDUCEO) projcet Advanced Very-High-Resolution Radiometer (AVHRR ) Climate Data Record for Aerosol Optical Depth (AOD) dataset covers Europe and North  Africa  over land.  It was  inferred  from AVHRR/3 instruments on board the  NOAA-16 and NOAA-18 satellites. \r\n\r\nThe dataset is provided on 3 processing levels: superpixels (L2B: 12x12 km2at nadir), gridded (1°x 1°) daily (L3 daily) and monthly (L3 monthly). The original lowest processing level (on selected dark field pixels) is not provided to users, but can be made available on request. The product contains the best AOD estimate but also a more detailed information on different aerosol types (most likely AOD value based on a multi-model ensemble climatology of the aerosol type and a 36 member ensemble of AOD values for a wide range of aerosol types spanning a realistic range in the atmosphere). A user  can  also process  an  application  with  all  36  ensemble  members  and  then  calculate  the  spread  of  the application results. Note that AOD values on the lowest processing level can be (slightly) negative reflecting radiometric calibration uncertaintiesand keeping un-cut AOD distributions.\r\n\r\nThe products contain on all levels sophisticated and detailed estimates of total AOD uncertainties propagated from  the  input  L1B  products  and  the  retrieval  algorithm through  all  levels of the  processing  chain.   These total uncertainties can be directly used for data assimilation or to constrain a confidence interval around the AOD solutions. AOD uncertainties are also kept separated into the (relevant) different parts with different correlation structures, so that a user can conduct averaging and uncertainty propagation as suitable for the intended  applications. Uncertainties also  include   separate  values  for  the  dominant  effects  (reflectance inversion, albedo estimation, aerosol type, cloud masking); also estimates of a sampling uncertainty (due to missing pixels from the cloud masking or from failed inversions) are contained.\r\n\r\nMore information including a report on the datset and scientific background is availible in the documentation section.",
    "keywords": "FIDUCEO, Uncertainty, AVHRRR, Climate data record, Aerosol Optical Depth",
    "publicationState": "published",
    "dataPublishedTime": "2019-11-18T11:10:20",
    "doiPublishedTime": null,
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/28841/?format=api",
        "dataPath": "/neodc/fiduceo/data/cdr/aot/v1.0.0/AVHRR/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 319989012502,
        "numberOfFiles": 23403,
        "fileFormat": "The files are CF compliant netCDF version4 .  For full information please see the format specification in the documentation section."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/7786/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2545/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6021/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/6022/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/28292/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/28293/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/28294/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/28295/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/28296/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/28297/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/28298/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70174/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70175/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70176/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70177/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70178/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70179/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70180/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70181/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70182/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70183/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70184/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70185/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70186/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70187/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70188/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70189/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70190/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70191/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70192/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70193/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70194/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70195/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70196/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70197/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70198/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/70199/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/89402/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/89403/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/89404/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/89405/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/89406/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/89407/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/89408/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/89409/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/89410/?format=api"
    ],
    "dataLineage": "Supplied to CEDA for archival by Thomas Popp of DLR  on behalf of the H2020 FIDUCEO project",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/27632/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/27633/?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/115415/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/122902/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/122903/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/122904/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/122907/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/122906/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/122908/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/122901/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/122905/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/129390/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/28847/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2528/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "http://creativecommons.org/licenses/by/4.0/",
            "licenceClassifications": "any"
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1138,
            "name": "NDGO0003"
        }
    ]
}