Observation Instance

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{
    "ob_id": 32601,
    "uuid": "00fe090efc58446e8980992a617f632f",
    "title": "ESA Antarctic Ice Sheet Climate Change Initiative (Antarctic_Ice_Sheet_cci): Antarctic Ice Sheet monthly velocity from 2017 to 2020, derived from Sentinel-1, v1",
    "abstract": "This dataset contains monthly gridded ice velocity maps of the Antarctic Ice Sheet derived from Sentin\r\nel-1 data acquired between 2017-01-01 and 2020-08-31.  It was generated by ENVEO, as part of the ESA Antarctic Ice Sheet Climate Change Initiative project (Antarctic_Ice_Sheet_cci).\r\n\r\nThe surface velocity is derived by applying feature tracking techniques using Sentinel-1 synthetic aperture radar (SAR) data acquired in the Interferometric Wide (IW) swath mode. Ice velocity is provided at 200m grid spacing in Polar Stereographic projection (EPSG: 3031). The horizontal velocity components are provided in true meters per day, towards easting and northing direction of the grid. The vertical displacement is derived from a digital elevation model. Provided is a NetCDF file with the velocity components: vx, vy, vz, along with maps showing the magnitude of the horizontal components, the valid pixel count and uncertainty. The product combines all ice velocity maps, based on 6- and 12-day repeats, acquired within a single month in a monthly averaged product.",
    "keywords": "Antarctic, Ice Sheet Velocity, ESA, CCI",
    "publicationState": "citable",
    "dataPublishedTime": "2021-06-17T14:01:35",
    "doiPublishedTime": "2021-06-28T16:02:08.246398",
    "updateFrequency": "",
    "status": "completed",
    "result_field": {
        "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/32743/?format=api",
        "dataPath": "/neodc/esacci/ice_sheets_antarctica/data/ice_velocity/antarctic_ice_sheet/sentinel_1/monthly/v1.0/",
        "oldDataPath": [],
        "storageLocation": "internal",
        "storageStatus": "online",
        "volume": 101295328588,
        "numberOfFiles": 45,
        "fileFormat": "Data are in NetCDF format"
    },
    "timePeriod": "https://api.catalogue.ceda.ac.uk/api/v2/times/8953/?format=api",
    "geographicExtent": "https://api.catalogue.ceda.ac.uk/api/v2/bboxes/2778/?format=api",
    "nonGeographicFlag": false,
    "phenomena": [
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/12066/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13204/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13205/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/13206/?format=api",
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        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50348/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50349/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50547/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/50548/?format=api",
        "https://api.catalogue.ceda.ac.uk/api/v2/phenomona/62645/?format=api"
    ],
    "dataLineage": "Data were processed by ENVEO as part of the ESA Antarctic Ice sheet CCI project and are archived on the ENVEO Cryoportal (http://cryoportal.enveo.at) They have been supplied to CEDA in the context of the ESA CCI Open Data Portal Project",
    "removedDataTime": null,
    "removedDataReason": "",
    "language": "English",
    "identifier_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/identifiers/10898/?format=api"
    ],
    "projects": [
        "https://api.catalogue.ceda.ac.uk/api/v2/projects/24700/?format=api"
    ],
    "observationcollection_set": [
        "https://api.catalogue.ceda.ac.uk/api/v2/observationcollections/24699/?format=api"
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    "responsiblepartyinfo_set": [
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    "procedureAcquisition": null,
    "procedureCompositeProcess": "https://api.catalogue.ceda.ac.uk/api/v2/composites/32701/?format=api",
    "procedureComputation": null,
    "permissions": [
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            "ob_id": "https://api.catalogue.ceda.ac.uk/api/v2/observations/2534/?format=api",
            "useLimitation": null,
            "accessConstraints": null,
            "accessCategory": "public",
            "accessRoles": null,
            "label": "public: None group",
            "licenceURL": "https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_icesheets_antarctic_terms_and_conditions.pdf",
            "licenceClassifications": "any"
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            "name": "NDGO0003"
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            "name": "ESACCI"
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}