OPERA Dynamic Surface Water Extent from Sentinel-1 (Version 1)
(OPERA_L3_DSWX-S1_V1)| Version | 1.0 |
| Processing Level | 3 |
| Start/Stop Date | 2024-Aug-01 to Present |
| Short Name | OPERA_L3_DSWX-S1_V1 |
| 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.
The OPERA DSWx-S1 product contains modified Copernicus Sentinel data (2024-2025). To access the calibration/validation database for OPERA Dynamic Surface Water Extent Products, please contact podaac@podaac.jpl.nasa.gov |
| DOI | 10.5067/OPDSWS1-L3V1 |
| Measurement | TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER PROCESSES/MEASUREMENTS |
| Platform/Sensor | Sentinel-1A / Platform Name: Sentinel-1A (Sentinel-1A) Orbit Period: 98.6 minutes Inclination Angle: 98.18 degrees SENTINEL-1 C-SAR SENSOR Name: SENTINEL-1 C-SAR (SENTINEL-1 C-SAR) Sentinel-1B / Platform Name: Sentinel-1B (Sentinel-1B) Orbit Period: 98.6 minutes Inclination Angle: 98.18 degrees SENTINEL-1 C-SAR SENSOR Name: SENTINEL-1 C-SAR (SENTINEL-1 C-SAR) |
| Project | Observational Products for End-Users from Remote Sensing Analysis, Satellite Needs Working Group (SNWG/OPERA) |
| Data Provider | Publisher: PO.DAAC Creator: OPERA Release Place: PO.DAAC Release Date: 2024-Aug-19 |
| Format | Cloud Optimized GeoTIFF |
| Keyword(s) | surface water, surface water extent, water area, DSWX, OPERA, Sentinel-1, S1, Radar |
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Resolution Spatial Resolution: 30 Meters x 30 Meters Temporal Resolution: Daily - < Weekly Coverage North Bounding Coordinate: 84 degrees South Bounding Coordinate: -84 degrees West Bounding Coordinate: -180 degrees East Bounding Coordinate: 180 degrees Time Span: 2024-Aug-01 to Present Projection Projection Type: Universal Transverse Mercator (UTM) Projection Detail: Geolocation information included for each pixel Ellipsoid: WGS 84 |
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| Available for access in-region with AWS Cloud | |
Region | |
| us-west-2 | |
| podaac-ops-cumulus-protected/OPERA_L3_DSWX-S1_V1 | |
| podaac-ops-cumulus-public/OPERA_L3_DSWX-S1_V1 | |
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| DATA CITATION GUIDELINES | |
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| ALGORITHM THEORETICAL BASIS DOCUMENT (ATBD) | |
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Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
| Citation | OPERA . 2024. OPERA Dynamic Surface Water Extent from Sentinel-1 product (Version 1). Ver. 1.0. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/OPDSWS1-L3V1
For more information see Data Citations and Acknowledgments.
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