Figure 16: Maps of Variables used in the soil moisture downscaling algorithm from July 21, 2005, over Oklahoma (a) MODIS Aqua 1 km land surface temperature during the day. (b) MODIS Aqua 1 km land surface temperature at night. (c) 1/4° spatial resolution AMSR-E soil moisture. (d) 1/8° spatial resolution NLDAS soil moisture. (e) MODIS Aqua 1 km NDVI .