The SMAP/In Situ Core Validation Site Land Surface Parameters Match-Up Data, Version 1 data set, accessible through the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC), has been updated.
Additional supporting core site files for 22 sites for the SPL2SMAP_S 9km data set have been added that cover time periods between 01 April 2015 and 31 March 2021. SMAP radiometer and radar soil moisture data products are matched with in situ-based soil moisture estimates from core validation sites to produce this data set. These data provide performance assessments of various SMAP soil moisture products.
Data set DOI: https://doi.org/10.5067/DXAVIXLY18KM