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Ground-based measurement of surface temperature and thermal emissivityMotorized cable systems for transporting infrared thermometers have been used successfully during several international field campaigns. Systems may be configured with as many as four thermal sensors up to 9 m above the surface, and traverse a 30 m transect. Ground and canopy temperatures are important for solving the surface energy balance. The spatial variability of surface temperature is often great, so that averaged point measurements result in highly inaccurate areal estimates. The cable systems are ideal for quantifying both temporal and spatial variabilities. Thermal emissivity is also necessary for deriving the absolute physical temperature, and measurements may be made with a portable measuring box.
Document ID
19950028748
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Owe, M.
(NASA Goddard Space Flight Center Greenbelt, MD, US, United States)
Van De Griend, A. A.
(Vrije Univ. Amsterdam, Netherlands)
Date Acquired
August 16, 2013
Publication Date
March 1, 1994
Publication Information
Publication: Advances in Space Research
Volume: 14
Issue: 3
ISSN: 0273-1177
Subject Category
Earth Resources And Remote Sensing
Accession Number
95A60347
Distribution Limits
Public
Copyright
Other

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