Sentinel-1 - NRB Level-1C - Global

The Sentinel-1 Normalised Radar Backscatter (NRB) product contains radiometrically terrain corrected (RTC) gamma nought backscatter (γ0) processed from Ground Range Detected (GRD) Level-1A data acquired in Interferometric Wide Swath (IW) or Extra Wide Swath (EW) mode. Each acquired polarization is stored in an individual binary image file. In addition to the actual backscatter data, annotation image datasets (e.g., local incidence angle) are included to enable better interpretation of the backscatter data as well as to convert it to sigma-nought ellipsoid. The product is projected and gridded into the United States Military Grid Reference System (US-MGRS). It uses modern technologies and standards like Cloud Optimized GeoTIFF (COG) and the provision of SpatioTemporal Asset Catalogue (STAC) metadata to maximise the accessibility and ease of use of the product (Copernicus product description).
Suggested Data Citation
German Aerospace Center (DLR) (2025): Sentinel-1 - NRB Level-1C - Global. https://doi.org/10.15489/4sc3nyjt0o76
Coverage
Geographic Boundaries
North:	90°
West:	180°
East:	-180°
South:	-90°
Time Period
Start date:	2014-04-01
End date:	ongoing
More Information
Keywords:	DLR, EOC, Sentinel-1 NRB, RTC, Radar, CEOS-ARD
Contact:	terrabyte@dlr.de
Access / Use Restriction:	License
Data Use Guidelines	Creative Commons BY 4.0
Links
Mission / Project Information
Product description	https://sentiwiki.copernicus.eu/web/s1-products#S1Products-Sentinel-1ARDNormalisedRadarBackscatter(NRB)ProductS1-Products-Sentinel-1-ARD-Normalised-Radar-Backscatter Copernicus product description
Processor documentation (s1ard)	https://s1ard.readthedocs.io/en/latest/ s1ard documentation
STAC collection (sentinel-1-nrb)	https://stac.terrabyte.lrz.de/browser/collections/sentinel-1-nrb terrabyte STAC
DOI (of Dataset)	https://doi.org/10.15489/4sc3nyjt0o76 Digital Object Identifier
Product Search and Download
Product Catalogue (STAC)	https://stac.terrabyte.lrz.de/browser/collections/sentinel-1-nrb Sentinel-1 Normalized Radar Backscatter (NRB)