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Imaging · collection · 2023

OPERA Dynamic Surface Water Extent from Harmonized Landsat Sentinel-2 product (Version 1)

Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/opdsw-pl3v1

This dataset contains Level-3 Dynamic OPERA surface water extent product version 1.

Description

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.

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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.

The 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. The OPERA DSWx-HLS product contains modified Copernicus Sentinel data (2023-2025). To access the calibration/validation database for OPERA Dynamic Surface Water Extent Products, please contact podaac@podaac.jpl.nasa.gov OPERA 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.

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Documentation and papers

Catalogue records · 3

Topics

Stated by source
LANDSAT-8 · Operational Land Imager · SENTINEL-2A · Sentinel-2B · Sentinel-2C · Sentinel-2 Multispectral Imager · Total Surface Water
From keywords
Astronomy & Astrophysics · Earth & Environmental Science · Ocean & Atmospheric Science · Physics
Inferred from text
Hydrology 72% · Image 75% · Satellite remote sensing 65%
Provenance · 2 source records, 24 field assertions
SourceKeyLast seenRaw
NASA Earthdata CMRC2617126679-POCLOUD10 d agoJSON v1
NASA Data Portal189713cc-1faf-4191-8220-00b0726755977 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[field].anzsrc:group:3707enrichment · NASA CMRtaxonomy-embedding@1.0.0title+keywords+description (72%)
concepts[field].local:field:astronomymapping · data nasa govconnector:data_nasa_gov@1.0.0
concepts[field].local:field:earth-environmentalmapping · data nasa govconnector:data_nasa_gov@1.0.0
concepts[field].local:field:ocean-atmosphericmapping · data nasa govconnector:data_nasa_gov@1.0.0
concepts[field].local:field:physicsmapping · data nasa govconnector:data_nasa_gov@1.0.0
concepts[instrument].gcmd_instrument:olisource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:sentinel-2-msisource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/terrestrial-hydrosphere/surface-water/surface-water-processes-measurements/total-surface-watersource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[modality].local:modality:imageenrichment · NASA CMRkeyword-concept-rules@1.0.0title+description (75%)
concepts[modality].local:modality:remote-sensingenrichment · NASA CMRkeyword-concept-rules@1.0.0title+description (65%)
concepts[platform].gcmd_platform:landsat-8source · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:sentinel-2asource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:sentinel-2bsource · NASA CMRconnector:nasa_cmr@1.0.0
concepts[platform].gcmd_platform:sentinel-2csource · NASA CMRconnector:nasa_cmr@1.0.0
created_datesource · NASA CMRconnector:nasa_cmr@1.0.0
descriptionsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/Abstract
license_textsource · data nasa govconnector:data_nasa_gov@1.0.0
publication_datesource · NASA CMRconnector:nasa_cmr@1.0.0
spatialsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/SpatialExtent
temporalsource · NASA CMRconnector:nasa_cmr@1.0.0/umm/TemporalExtents
titlesource · NASA CMRconnector:nasa_cmr@1.0.0/umm/EntryTitle
updated_datesource · NASA CMRconnector:nasa_cmr@1.0.0
version_labelsource · NASA CMRconnector:nasa_cmr@1.0.0