“…The ECV SM product has been validated across different regions using in-situ, model and SAR-derived soil moisture datasets in previous studies (e.g. Albergel et al, 2013b;Loew et al, 2013;Dorigo et al, 2015;Pratola et al, 2014;Zeng et al, 2015) where good agreement between the datasets was generally found. For example, Zeng et al (2015) found the ECV SM product to be highly related to in-situ data from two different soil moisture networks at the Tibetan Plateau, with the highest R values (0.70 -0.85) and smallest ubRMSD values (0.034 -0.042m 3 m -3 ) compared to six other satellite derived soil moisture products (AMSR-E (NASA product), AMSR-E (JAXA product), AMSR-E (LPRM product), AMSR-2, ASCAT, and SMOS).…”