Google Earth Engine code: https://code.earthengine.google.com/630b7f024ac5cbae8af79b6d6c8b622f
Google Earth Engine App URL: https://bnarayanarao.users.earthengine.app/view/dpgrd
References:
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Narayanarao Bhogapurapu, Subhadip Dey, Avik Bhattacharya, Dipankar Mandal, Juan Lopez-Sanchez, Heather McNairn, Carlos Lopez-Martinez and Y. S. Rao 2021 “Dual-polarimetric descriptors from Sentinel-1 GRD SAR data for crop growth assessment”. ISPRS Journal of Photogrammetry and Remote Sensing. 20-35, 178. doi: 10.1016/j.isprsjprs.2021.05.013
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Narayanarao Bhogapurapu, Subhadip Dey, Dipankar Mandal, Avik Bhattacharya, L. Karthikeyan, Heather McNairn and Y. S. Rao 2022 “Soil Moisture Retrieval Over Croplands Using dual-pol L-band GRD SAR Data”. Remote Sensing of Environment. Volume 271, 2022, Pages 112900, ISSN 0034-4257 doi: 10.1016/j.rse.2022.112900