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Soil water content and evaporation determined by thermal parameters obtained from ground-based and remote measurementsSoil water contents from both smooth and rough bare soil were estimated from remotely sensed surface soil and air temperatures. An inverse relationship between two thermal parameters and gravimetric soil water content was found for Avondale loam when its water content was between air-dry and field capacity. These parameters, daily maximum minus minimum surface soil temperature and daily maximum soil minus air temperature, appear to describe the relationship reasonably well. These two parameters also describe relative soil water evaporation (actual/potential). Surface soil temperatures showed good agreement among three measurement techniques: in situ thermocouples, a ground-based infrared radiation thermometer, and the thermal infrared band of an airborne multispectral scanner.
Document ID
19760044184
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Reginato, R. J.
(LFE Environment Analysis Labs. Div. Richmond, CA, United States)
Idso, S. B.
(LFE Environment Analysis Labs. Div. Richmond, CA, United States)
Jackson, R. D.
(U.S. Department of Agriculture, Water Conservation Laboratory, Phoenix Ariz., United States)
Vedder, J. F.
(LFE Environment Analysis Labs. Div. Richmond, CA, United States)
Blanchard, M. B.
(NASA Ames Research Center Moffett Field, Calif., United States)
Goettelman, R.
(LFE Corp. Richmond, Calif., United States)
Date Acquired
August 8, 2013
Publication Date
March 20, 1976
Publication Information
Publication: Journal of Geophysical Research
Volume: 81
Subject Category
Earth Resources And Remote Sensing
Accession Number
76A27150
Funding Number(s)
CONTRACT_GRANT: NASA ORDER S-53769-A
Distribution Limits
Public
Copyright
Other

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