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Sensitivity of thermal inertia calculations to variations in environmental factorsThe sensitivity of thermal inertia (TI) calculations to errors in the measurement or parameterization of a number of environmental factors is considered here. The factors include effects of radiative transfer in the atmosphere, surface albedo and emissivity, variations in surface turbulent heat flux density, cloud cover, vegetative cover, and topography. The error analysis is based upon data from the Heat Capacity Mapping Mission (HCMM) satellite for July 1978 at three separate test sites in the deserts of the western United States. Results show that typical errors in atmospheric radiative transfer, cloud cover, and vegetative cover can individually cause root-mean-square (RMS) errors of about 10 percent (with atmospheric effects sometimes as large as 30-40 percent) in HCMM-derived thermal inertia images of 20,000-200,000 pixels.
Document ID
19850036302
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kahle, A. B.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Alley, R. E.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Schieldge, J. P.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena; Arete Associates, Inc. Encino, CA, United States)
Date Acquired
August 12, 2013
Publication Date
December 1, 1984
Publication Information
Publication: Remote Sensing of Environment
Volume: 16
ISSN: 0034-4257
Subject Category
Earth Resources And Remote Sensing
Accession Number
85A18453
Distribution Limits
Public
Copyright
Other

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