https://earthzine.org/introduction-to-the-soil-moisture-active-passive-smap-mission/
Introduction to the Soil Moisture Active Passive (SMAP) Mission - Earthzine
Feb 4, 2020 - The Soil Moisture Active Passive (SMAP) mission planned to launch in January 2015 will provide a global map of soil moisture measurements in an accessible,...
to thesoil moisturesmap missionintroductionactive