This research was carried out in part at the Jet Propulsion Laboratory, California Institute of Technology, under contract with NASA.
FOR FURTHER READING
Entekhabi, D., and Coauthors, 2010: The Soil Moisture Active Passive (SMAP) mission. Proc. IEEE, 98, 704–716. doi:10.1109/JPROC.2010.2043918.
National Research Council, 2007: Earth Science and Applications from Space: National Imperatives for the Next Decade and Beyond. National Academies Press, 428 pp.