{"type":"Collection","id":"OPERA_L3_DSWX-HLS_V1_1.0","title":"OPERA Dynamic Surface Water Extent from Harmonized Landsat Sentinel-2 product (Version 1)","description":"This dataset contains Level-3 Dynamic OPERA surface water extent product version 1.  The data are validated surface water extent observations beginning April 2023. Known issues and caveats on usage are described under Documentation. The input dataset for generating each product is the Harmonized Landsat-8 and Sentinel-2A/B/C (HLS) product version 2.0. HLS products provide surface reflectance (SR) data from the Operational Land Imager (OLI) aboard the Landsat 8 satellite and the MultiSpectral Instrument (MSI) aboard the Sentinel-2A/B/C satellite. The surface water extent products are distributed over projected map coordinates using the Universal Transverse Mercator (UTM) projection. Each UTM tile covers an area of 109.8 km × 109.8 km. This area is divided into 3,660 rows and 3,660 columns at 30-m pixel spacing. Each product is distributed as a set of 10 GeoTIFF (Geographic Tagged Image File Format) files including water classification, associated confidence, land cover classification, terrain shadow layer, cloud/cloud-shadow classification, Digital elevation model (DEM), and Diagnostic layer.\n\nThe digital elevation model (DEM) provided as a layer of the DSWx-HLS product (band 10) was generated using the Copernicus DEM 30-m and Copernicus DEM 90-m models provided by the European Space Agency. The Copernicus DEM 30-m and Copernicus DEM 90-m were produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The organizations in charge of the OPERA project, the Copernicus programme, and Airbus Defence and Space GmbH by law or by delegation do not assume any legal responsibility or liability, whether express or implied, arising from the use of this DEM.\n\nThe OPERA DSWx-HLS product contains modified Copernicus Sentinel data (2023-2025).\n\nTo access the calibration/validation database for OPERA Dynamic Surface Water Extent Products, please contact podaac@podaac.jpl.nasa.gov \n\nThe OPERA team has completed reprocessing of all DSWx-S1 granules impacted by this anomaly between May 20, 2025, and December 9, 2025. The replacement products are now available, and we recommend that users replace previously downloaded data with the reprocessed products.\n\nOPERA was informed by the Satellite Needs Working Group (SNWG), an interagency effort of the U.S. Government dedicated to identifying and addressing Earth observation needs across U.S. civilian federal agencies.","stac_version":"1.0.0","stac_extensions":["https://stac-extensions.github.io/storage/v2.0.0/schema.json"],"extent":{"spatial":{"bbox":[[-180,-84,180,84]]},"temporal":{"interval":[["2016-01-01T00:00:00.000Z",null]]}},"assets":{"browse":{"href":"https://gis.earthdata.nasa.gov/portal/home/group.html?id=8abb96a5532140c7bd357e3b11ac6a2d","title":"Download group.html?id=8abb96a5532140c7bd357e3b11ac6a2d","type":"image/jpeg","roles":["browse"]},"thumbnail_0":{"href":"https://podaac.jpl.nasa.gov/Podaac/thumbnails/OPERA_L3_DSWX-HLS_PROVISIONAL_V0.png","title":"Thumbnail [0]","description":"Thumbnail","roles":["thumbnail"]},"thumbnail_1":{"href":"https://go.nasa.gov/3KBfGGs","title":"Thumbnail [1]","description":"OPERA DSWx-HLS in Worldview","roles":["thumbnail"]},"thumbnail_2":{"href":"https://gis.earthdata.nasa.gov/portal/home/group.html?id=8abb96a5532140c7bd357e3b11ac6a2d","title":"Thumbnail [2]","description":"NASA’s Earthdata Geographic Information System (EGIS) is a resource for distributing cloud-native, GIS-ready NASA Earth Science data, services, and resources. These include ArcGIS and Open Geospatial Consortium (OGC)-compliant raster and feature geospatial services. The URL links to the EGIS homepage where this dataset can be searched for.","roles":["thumbnail"]},"nasa":{"href":"https://search.earthdata.nasa.gov/search/granules?p=C2617126679-POCLOUD","title":"Direct Download [1]","description":"Browse granule search results in Earthdata Search","roles":["data"]},"https://github":{"href":"https://github.com/podaac/data-subscriber","title":"Direct Download [2]","description":"This dataset can be downloaded using the podaac-data-subscriber (the recommended tool for bulk downloading PO.DAAC data). It is a Python package for downloading one or many files using the command line interface. The URL redirects to the data-subscriber home page with instructions for utilizing the tool","roles":["data"]},"gov/podaac-ops-cumulus-docs/web-misc/opera/OPERA_L3_DSWX-HLS_V1_Ancillary_Data_Access":{"href":"https://archive.podaac.earthdata.nasa.gov/podaac-ops-cumulus-docs/web-misc/opera/OPERA_L3_DSWX-HLS_V1_Ancillary_Data_Access.pdf","title":"Direct Download [3]","description":"OPERA Ancillary Data Access","roles":["data"]},"s3_podaac_ops_cumulus_protected_OPERA_L3_DSWX_HLS_V1":{"href":"s3://podaac-ops-cumulus-protected/OPERA_L3_DSWX-HLS_V1","roles":["data"],"title":"podaac_ops_cumulus_protected_OPERA_L3_DSWX_HLS_V1","storage:refs":["aws"]},"s3_podaac_ops_cumulus_public_OPERA_L3_DSWX_HLS_V1":{"href":"s3://podaac-ops-cumulus-public/OPERA_L3_DSWX-HLS_V1","roles":["data"],"title":"podaac_ops_cumulus_public_OPERA_L3_DSWX_HLS_V1","storage:refs":["aws"]},"s3_credentials":{"href":"https://archive.podaac.earthdata.nasa.gov/s3credentials","title":"S3 credentials API endpoint","roles":["metadata"]},"s3_credentials_documentation":{"href":"https://archive.podaac.earthdata.nasa.gov/s3credentialsREADME","title":"S3 credentials API endpoint documentation","roles":["metadata"]},"metadata":{"href":"https://cmr.earthdata.nasa.gov/search/concepts/C2617126679-POCLOUD.xml","title":"CMR XML metadata for C2617126679-POCLOUD","type":"application/xml","roles":["metadata"]}},"providers":[{"name":"POCLOUD","roles":["producer"]},{"name":"NASA EOSDIS","roles":["host"]}],"links":[{"rel":"self","href":"https://cmr.earthdata.nasa.gov/stac/POCLOUD/collections/OPERA_L3_DSWX-HLS_V1_1.0","type":"application/json"},{"rel":"root","href":"https://cmr.earthdata.nasa.gov/stac","type":"application/json","title":"Root Catalog"},{"rel":"parent","href":"https://cmr.earthdata.nasa.gov/stac/POCLOUD/collections","type":"application/json","title":"Provider Collections"},{"rel":"license","href":"https://www.earthdata.nasa.gov/engage/open-data-services-software-policies/data-use-guidance","title":"EOSDIS Data Use Policy","type":"text/html"},{"rel":"about","href":"https://cmr.earthdata.nasa.gov/search/concepts/C2617126679-POCLOUD.html","title":"HTML metadata for collection","type":"text/html"},{"rel":"via","href":"https://cmr.earthdata.nasa.gov/search/concepts/C2617126679-POCLOUD.native","title":"Native metadata for collection","type":"application/xml"},{"rel":"via","href":"https://cmr.earthdata.nasa.gov/search/concepts/C2617126679-POCLOUD.echo10","title":"ECHO10 metadata for collection","type":"application/echo10+xml"},{"rel":"via","href":"https://cmr.earthdata.nasa.gov/search/concepts/C2617126679-POCLOUD.json","title":"CMR JSON metadata for collection","type":"application/json"},{"rel":"via","href":"https://cmr.earthdata.nasa.gov/search/concepts/C2617126679-POCLOUD.umm_json","title":"CMR UMM_JSON metadata for collection","type":"application/vnd.nasa.cmr.umm+json"},{"rel":"items","href":"https://cmr.earthdata.nasa.gov/stac/POCLOUD/collections/OPERA_L3_DSWX-HLS_V1_1.0/items","type":"application/geo+json","title":"Collection Items"}],"license":"CC0-1.0","keywords":["EARTH SCIENCE","TERRESTRIAL HYDROSPHERE","SURFACE WATER","SURFACE WATER PROCESSES/MEASUREMENTS","TOTAL SURFACE WATER"],"summaries":{"platform":["LANDSAT-8","Sentinel-2A","Sentinel-2B","Sentinel-2C"],"instruments":["OLI","Sentinel-2 MSI","Sentinel-2 MSI","Sentinel-2 MSI"]},"storage:schemes":{"aws":{"type":"aws-s3","platform":"https://{bucket}.s3.{region}.amazonaws.com","bucket":"podaac-ops-cumulus-protected","region":"us-west-2"}}}