%0 Journal Article %T Spatial downscaling of SMAP radiometer soil moisture using radar data: Application of machine learning to the SMAPEx and SMAPVEX campaigns %A Ghafari, Elaheh %A Jeffrey P. Walker %A Liujun Zhu %A Andreas Colliander %A Faridhosseini, Alireza %J Science of Remote Sensing %@ 2666-0172 %D 2024