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.

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 Read our doc on how to get AWS Credentials to retrieve this data: https://archive.podaac.earthdata.nasa.gov/s3credentialsREADME

Update Frequency

From 2023-04-04 to Ongoing (Daily - < Weekly)

License

Creative Commons BY 4.0

Documentation

https://doi.org/10.5067/OPDSW-PL3V1

Managed By

See all datasets managed by NASA.

Contact

Help Desk: podaac@podaac.jpl.nasa.gov. Home Page: https://podaac.jpl.nasa.gov/

How to Cite

OPERA Dynamic Surface Water Extent from Harmonized Landsat Sentinel-2 product (Version 1) was accessed on DATE from https://registry.opendata.aws/nasa-operal3dswx-hlsv1.

Usage Examples

Tutorials

• Access DSWx-HLS S3 by M. Grace Bato
  
• Getting Started with OPERA DSWx Product by K. Devlin and M. Grace Bato
  
• Stream and Viz DSWx-HLS via Direct HTTPS by M. Grace Bato
  
• Working with OPERA Dynamic Surface Water Extent (DSWx) Data by Nicholas Tarpinian
  
  

Publications

• Improved Automated Detection of Subpixel-Scale Inundation—Revised Dynamic Surface Water Extent (DSWE) Partial Surface Water Tests by Jones, John W