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Description

This dataset contains Level-3 Dynamic OPERA Surface Water Extent from Sentinel-1 (DSWx-S1) product version 1. DSWx-S1 provides near-global geographical mapping of surface water extent over land at a spatial resolution of 30 meters over the Military Grid reference System (MGRS) grid system, with a temporal revisit frequency between 6-12 days. Using Sentinel-1 radar observations, DSWx-S1 maps open inland water bodies greater than 3 hectares and 200 meters in width, irrespective of cloud conditions and daylight illumination that often pose challenges to optical sensors. Forward production of the DSWx-S1 data record began in Sept 2024. Each product is distributed as a set of 3 GeoTIFF (Geographic Tagged Image File Format) files including water classification and associated confidence layers.
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The OPERA DSWx-S1 product contains modified Copernicus Sentinel data (2024-2025).
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To access the calibration/validation database for OPERA Dynamic Surface Water Extent Products, please contact podaac@podaac.jpl.nasa.gov

Product Summary

Platforms
Sentinel-1A ,
Sentinel-1B
Instruments
SENTINEL-1 C-SAR
Spatial Extent

N: 84 S: -84 E: 180 W: -180

Spatial Resolution
30 Meters x 30 Meters
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
2024-08-01 to Present
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC) ,
Jet Propulsion Laboratory, NASA (NASA/JPL)
Concept ID
C2949811996-POCLOUD
Data State
ACTIVE
Number of Files/Granules
1730199
Processing Level
3
Published
Science Keywords
Total Surface Water

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

OPERA. (2024). OPERA Dynamic Surface Water Extent from Sentinel-1 Version 1 [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/OPDSWS1-L3V1 Date Accessed: 2025-12-13

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