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United States Department of Agriculture

Agricultural Research Service

Research Project: QUANTIFYING LANDSCAPE FACTORS INFLUENCING SOIL PRODUCTIVITY AND THE ENVIRONMENT Title: Early conclusions of the soil moisture active passive Marena Oklahoma in situ sensor testbed (SMAP-Moisst)

Authors
item COSH, MICHAEL
item Oshsner, Tyson -
item MCKEE, LYNN

Submitted to: American Geophysical Union
Publication Type: Abstract Only
Publication Acceptance Date: September 6, 2012
Publication Date: December 3, 2012
Citation: Cosh, M.H., Oshsner, T., Mckee, L.G. 2012. Early conclusions of the soil moisture active passive Marena Oklahoma in situ sensor testbed (SMAP-Moisst)[abstract]. American Geophysical Union. 2012 CDROM.

Technical Abstract: Monitoring soil moisture state has been increasing in importance as climate patterns become more unpredictable. Remote sensing technologies have been developed and are approaching operational use, however, there is still a need to monitor soil moisture via in situ networks to maintain satellite validation programs and provide long term climate data records for long term monitoring. The diversity of network protocols and instrumentation has led to the development of a testbed for comparing in situ soil moisture sensors. Located in Marena, Oklahoma on the Oklahoma State University Range Research Station, the testbed consists of four base stations which contain a wide variety of currently used soil moisture sensors in profile to provide replication of the sensors. These stations were installed in 2010 and have been operating on an hourly basis for more than 2 years. Additional instrumentation has been added to the testbed as they become available. These include stations from the COSMOS network, GPS Reflectometry Network, Climate Reference Network, and a Passive Distributed Temperature System. Early results of this testbed include calibration and scaling analysis as well as performance of the sensors during freeze-thaw cycles. This testbed is a part of the the Soil Moisture Active Passive Satellite Mission Calibration/Validation Program and the AirMOSS Calibration/Validation Program.

Last Modified: 7/25/2014
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