GET

Observation Instance

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/40807/?format=api
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "ob_id": 40807,
    "uuid": "34e4bfe402c048c783e64eac0f0bca37",
    "title": "ESA Vegetation Parameters Climate Change Initiative (Vegetation_Parameters_cci): LAI and fAPAR, Version 1.0",
    "abstract": "Climate Research Data Package 1 from the ESA Climate Change Initiative Vegetation Parameters Project (Vegetation_parameters_cci). The dataset consists of Leaf Area Index (LAI) and fraction of Absorbed Photosynthetically Active Radiation (fAPAR) gridded at 1 km resolution for the period 2000-2020. The dataset is based on data from SPOT4/5-VEGETATION1/2 and PROBA-V as input data.\r\n\r\nLAI and fAPAR are retrieved using OptiSAIL (see Blessing and Giering, 2021 doi:10.20944/preprints202109.0147.v1). The dataset is processed for a north-south transect from Finland to South-Africa, as well as for a set of globally distributed sites that is representative for all biomes and for those sites where in-situ reference data is available.\r\n\r\nThe temporal resolution of both datasets is 5 days, but is computed using data selected from a symmetric 10-days window. The data are not smoothed in time. The transect is ordered in tiles following the PROBA-V tiling definition. These files contain the fully validated layers of (effective) LAI, fAPAR, their uncertainties and the correlation between both. The sites additionally include the variables Chlorophyll a+b leaf pigment concentration (Cab), the fraction of Chlorophyll Absorbed Photosynthetically Active Radiation (fAPAR_Cab) and Surface Albedo calculated as bi-hemispheric reflectance (BHR) for diffuse illumination with a reference spectrum for spectral broadband intervals visible wavelengths (VIS, 400-700 nm), near-infrared wavelengths (NIR, 700-2500 nm), and for the combined shortwave range (SW, 400-2500 nm), as well as directional-hemispherical reflectance (DHR) for the same spectral broadbands, computed for local solar noon. These additional variables are not validated.\r\n\r\nFurther details about the data, including validation and intercomparison with similar datasets, can be found in the PDF documentation.",
    "keywords": "ESA, CCI, Vegetation, LAI, fAPAR, climate change, GCOS",
    "publicationState": "citable",
    "dataPublishedTime": "2023-12-18T16:26:50",
    "doiPublishedTime": "2023-12-18T16:36:43",
    "updateFrequency": "notPlanned",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/40990/?format=api",
        "dataPath": "/neodc/esacci/vegetation_parameters/data/L3S/vp_products/v1.0",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 282485273505,
        "numberOfFiles": 54006,
        "fileFormat": "The data are provided in netCDF format."
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/11354/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/3994/?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/6023/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50559/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50561/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62501/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/67723/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74293/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74294/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74295/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74296/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74297/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74298/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74299/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74300/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74301/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74302/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74303/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74304/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74305/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74306/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74307/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74308/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74309/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74310/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74311/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74312/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74313/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74314/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74315/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74316/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74317/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74318/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74319/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74320/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74321/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74322/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74323/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74324/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74325/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74326/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74327/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74328/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74329/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74330/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74331/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74332/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74333/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74334/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74335/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74336/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74337/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74338/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74339/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74340/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74341/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74342/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74343/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74344/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74345/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74346/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74347/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74348/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74349/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74350/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74351/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74352/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74353/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74354/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74355/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74356/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74357/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74358/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74359/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/74360/?format=api"
    ],
    "dataLineage": "Data was produced by the ESA Vegetation Parameters CCI team as part of the ESA Climate Change Initiative (CCI) and is being held on the CEDA (Centre for Environmental Data Analysis) archive as part of the ESA CCI Open Data Portal project.",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/12792/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/40992/?format=api"
    ],
    "observationcollection_set": [],
    "responsiblepartyinfo_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198499/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198500/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198501/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198502/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198503/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198504/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198690/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198691/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198692/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198693/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198694/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198695/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198696/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198697/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198698/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198699/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198700/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/rpis/198701/?format=api"
    ],
    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/41219/?format=api",
    "procedureComputation": null,
    "permissions": [
        {
            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2607/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_vegetation_parameters_terms_and_conditions.pdf",
            "licenceClassifications": ""
        }
    ],
    "discoveryKeywords": [
        {
            "ob_id": 1140,
            "name": "ESACCI"
        }
    ]
}