TY - RPRT TI - NASA Soil Moisture Active Passive (SMAP) Mission Formulation AU - Entekhabi, Dara AU - Njoku, Eni AU - ONeill, Peggy AU - Kellogg, Kent AU - Entin, Jared PY - 2011 UR - https://ntrs.nasa.gov/citations/20110011773 ID - 20110011773 ER -