{
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    "spatial": {"bbox": [[
      -180,
      -82,
      180,
      82
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    "temporal": {"interval": [[
      "1991-08-01T00:00:00.000Z",
      "2011-07-04T23:59:59.999Z"
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  "stac_version": "1.0.0",
  "sci:doi": "10.57780/ers-af99f2b",
  "keywords": [
    "Natural Hazards and Disaster Risk",
    "Atmosphere",
    "Atmospheric Winds",
    "EARTH SCIENCE > HUMAN DIMENSIONS > NATURAL HAZARDS",
    "EARTH SCIENCE > ATMOSPHERE",
    "EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS",
    "Sun-synchronous",
    "ASPS 10.04",
    "Very Low Resolution - VLR (> 1200 m)",
    "782 to 785 km",
    "5 km",
    "Scatterometers",
    "ERS-1",
    "ERS-2",
    "AMI/Scatterometer"
  ],
  "description": "The ERS data reprocessed with the ASPS facility is also available in the UWI format to maintain the compatibility with the FD (Fast Delivery) products.  The ASPS UWI product is organised in frames of 500 x 500 km providing the radar backscattering sigma nought for the three beams of the instrument plus the wind speed and direction.  The wind retrieval is performed with the CMOD5N geophysical model function derived by ECMWF to compute the neutral winds rather than 10m winds.  ASPS UWI products are provided with a spatial resolution of 50x50km and a grid spacing of 25 km. One product covers one orbit from ascending node crossing.  Please consult the Product Quality Readme file (https://earth.esa.int/eogateway/documents/20142/37627/ERS-WS-Product-Quality-Readmefile-ENVI-GSOP-EOGD-QD-15-0130-issue1.2.pdf) before using the ERS ASPS data.",
  "sci:citation": "European Space Agency, 2019, ERS-1/2 SCATTEROMETER Nominal Resolution back-scattering measurements, Ocean Wind field [UWI], Version ASPS v10.04.",
  "collection": "EOP:ESA:EARTH-ONLINE",
  "type": "Collection",
  "title": "ERS-1/2 SCATTEROMETER Nominal Resolution back-scattering measurements, Ocean Wind field [UWI]",
  "license": "other",
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      "title": "ISO 19139 metadata",
      "type": "application/vnd.iso.19139+xml"
    },
    "metadata_iso_19139_2": {
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      "title": "ISO 19139-2 metadata",
      "type": "application/vnd.iso.19139-2+xml"
    },
    "metadata_dif_10": {
      "roles": ["metadata"],
      "href": "https://catalog.maap.eo.esa.int/catalogue/collections/ERS.UWI?httpAccept=application/dif10%2Bxml",
      "title": "DIF-10 metadata",
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    },
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      "roles": ["metadata"],
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      "title": "ISO 19115-3 metadata",
      "type": "application/vnd.iso.19115-3+xml"
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  "links": [
    {
      "rel": "cite-as",
      "href": "https://doi.org/10.57780/ers-af99f2b",
      "type": "text/html",
      "title": "Landing page"
    },
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      "title": "ESA@ESRIN",
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    {
      "rel": "license",
      "href": "https://earth.esa.int/eogateway/documents/20142/1564626/Terms-and-Conditions-for-the-use-of-ESA-Data.pdf",
      "type": "application/pdf",
      "title": "Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions"
    },
    {
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      "type": "text/html",
      "title": "Documentation related to SCATTEROMETER data - Product Specifications"
    },
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      "rel": "describedby",
      "href": "https://earth.esa.int/web/sppa/mission-performance/esa-missions/ers-2/scatterometer/quality-control-reports",
      "type": "text/html",
      "title": "SCATTEROMETER Quality Information - Product Specifications"
    },
    {
      "rel": "describedby",
      "href": "https://earth.esa.int/eogateway/search?skipDetection=true&text=&category=Document%20library&filter=ami-scatterometer",
      "type": "text/html",
      "title": "All SCATTEROMETER documents - Product Specifications"
    },
    {
      "rel": "describedby",
      "href": "https://esatellus.service-now.com/csp?id=esa_simple_request",
      "type": "text/html",
      "title": "Get Help? - ESA Earth Observation User Services Portal"
    },
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      "title": "JSON-LD (schema.org) metadata"
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      "title": "JSON-LD (GeoDCAT-AP) metadata"
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  "id": "ERS.UWI",
  "updated": "2025-04-24T10:36:05Z",
  "stac_extensions": [
    "https://stac-extensions.github.io/processing/v1.2.0/schema.json",
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      "url": "http://www.esa.int"
    },
    {
      "roles": ["host"],
      "name": "ESA EO Catalogue"
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  ],
  "summaries": {
    "processing:level": ["L2"],
    "instruments": [
      "AMI/Scatterometer",
      "AMI/Scatterometer"
    ],
    "platform": [
      "ERS-1",
      "ERS-2"
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}