Journal
REMOTE SENSING
Volume 14, Issue 2, Pages -Publisher
MDPI
DOI: 10.3390/rs14020351
Keywords
synthetic aperture radar; Sentinel-1; analysis ready data; normalized radar backscatter; Open Data Cube
Categories
Funding
- Leona M. and Harry B. Helmsley Charitable Trust
- Australian Government
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Digital Earth Africa is providing an operational Sentinel-1 normalized radar backscatter dataset for Africa. Developed in partnership with Sinergise, this dataset is compliant with the CEOS Analysis Ready Data for Land (CARD4L) specification and can be accessed through the Digital Earth Africa platform. Applying radiometric terrain correction, this dataset is expected to support various applications in Africa, including natural resource monitoring and land cover mapping. It is the first free and open continental scale analysis ready data of its kind.
Digital Earth Africa is now providing an operational Sentinel-1 normalized radar backscatter dataset for Africa. This is the first free and open continental scale analysis ready data of this kind that has been developed to be compliant with the CEOS Analysis Ready Data for Land (CARD4L) specification for normalized radar backscatter (NRB) products. Partnership with Sinergise, a European geospatial company and Earth observation data provider, has ensured this dataset is produced efficiently in the cloud infrastructure and can be sustained in the long term. The workflow applies radiometric terrain correction (RTC) to the Sentinel-1 ground range detected (GRD) product, using the Copernicus 30 m digital elevation model (DEM). The method is used to generate data for a range of sites around the world and has been validated as producing good results. This dataset over Africa is made available publicly as a AWS public dataset and can be accessed through the Digital Earth Africa platform and its Open Data Cube API. We expect this dataset to support a wide range of applications, including natural resource monitoring, agriculture, and land cover mapping across Africa.
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