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The Effect of Soil Hydraulic Properties vs. Soil Texture in Land Surface ModelsThis study focuses on the effect of Soil Hydraulic Property (SHP) selection on modeled surface fluxes following a rain storm in a semi-arid environment. SHPs are often defined based on a Soil Texture Class (STC). To examine the effectiveness of this approach, the Noah land surface model was run with each of 1306 soils in a large SHP database. Within most STCs, the outputs have a range of 350 W/m2 for latent and sensible heat fluxes, and 8K for surface temperature. The average difference between STC median values is only 100 W/m2 for latent and sensible heat. It is concluded that STC explains 5-15% of the variance in model outputs and should not be used to determine SHPs.
Document ID
20080013234
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Gutmann, E. D.
(Colorado Univ. Boulder, CO, United States)
Small, E. E.
(Colorado Univ. Boulder, CO, United States)
Date Acquired
August 24, 2013
Publication Date
January 21, 2005
Publication Information
Publication: Geophysical Research Letters
Publisher: American Geophysical Union
Volume: 32
Subject Category
Geophysics
Funding Number(s)
CONTRACT_GRANT: NNC04GO83G
Distribution Limits
Public
Copyright
Other

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