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The NASA Soil Moisture Active Passive (SMAP) Mission FormulationThe Soil Moisture Active Passive (SMAP) mission is one of the first-tier projects recommended by the U.S. National Research Council Committee on Earth Science and Applications from Space. The SMAP mission is in formulation phase and it is scheduled for launch in 2014. The SMAP mission is designed to produce high-resolution and accurate global mapping of soil moisture and its freeze/thaw state using an instrument architecture that incorporates an L-band (1.26 GHz) radar and an L-band (1.41 GHz) radiometer. The simultaneous radar and radiometer measurements will be combined to derive global soil moisture mapping at 9 [km] resolution with a 2 to 3 days revisit and 0.04 [cm3 cm-3] (1 sigma) soil water content accuracy. The radar measurements also allow the binary detection of surface freeze/thaw state. The project science goals address in water, energy and carbon cycle science as well as provide improved capabilities in natural hazards applications.
Document ID
20120013141
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Entekhabi, Dara
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Njoku, Eni
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
ONeill, Peggy
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kellogg, Kent
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Entin, Jared
(NASA Headquarters Washington, DC United States)
Date Acquired
August 26, 2013
Publication Date
August 1, 2011
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: Geoscience and Remote Sensing Symposium (IGARSS)
Location: Vancouver
Country: Canada
Start Date: July 24, 2011
End Date: July 29, 2011
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Other
Keywords
microwave
water cycle
freeze / thaw
soil moisture
Decadal Survey.

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