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the nasa soil moisture active passive (smap) mission: overviewThe Soil Moisture Active Passive (SMAP) mission is one of the first Earth observation satellites being developed by NASA in response to the National Research Council?s Decadal Survey [1]. Its mission design consists of L-band radiometer and radar instruments sharing a rotating 6-m mesh reflector antenna to provide high-resolution and high-accuracy global maps of soil moisture and freeze/thaw state every 2-3 days. The combined active/passive microwave soil moisture product will have a spatial resolution of 10 km and a mean latency of 24 hours. In addition, the SMAP surface observations will be combined with advanced modeling and data assimilation to provide deeper root zone soil moisture and net ecosystem exchange of carbon. SMAP is expected to launch in the late 2014 - early 2015 time frame.
Document ID
Document Type
Conference Paper
O'Neill, Peggy
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Entekhabi, Dara
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Njoku, Eni
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kellogg, Kent
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 25, 2013
Publication Date
July 25, 2011
Subject Category
Earth Resources and Remote Sensing
Report/Patent Number
Meeting Information
2010 30th IEEE International Geoscience and Remote Sensing Symposium(Honolulu, HI)
Distribution Limits
Public Use Permitted.

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NameType 20110015242.pdf STI