Intercomparison of Sentinel-1 Datasets from Google Earth Engine and the Sinergise Sentinel Hub Card4L Tool
2021
This paper outlines a comparative study where Sentinel-1 Interferometric Wide Swath (IWS) data obtained from two different sources - the Google Earth Engine and the Sentinel Hub by Sinergise - have been compared with respect to their geometric and radiometric characteristics. Assessed over five study sites with different land cover and topographic features - in Australia, Brazil, Ethiopia, Indonesia and the USA - the results indicate comparable absolute geolocation accuracy between the two sets of data. Radiometric performance was also similar within the main (0 - -30 dB) dynamic range of the data.
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