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Soil temperature investigations using satellite acquired thermal-infrared data in semi-arid regionsThermal-infrared data from the Heat Capacity Mapping Mission satellite were used to map the spatial distribution of diurnal surface temperatures and to estimate mean annual soil temperatures (MAST) and annual surface temperature amplitudes (AMP) in semi-arid east central Utah. Diurnal data with minimal snow and cloud cover were selected for five dates throughout a yearly period and geometrically co-registered. Rubber-sheet stretching was aided by the WARP program which allowed preview of image transformations. Daytime maximum and nighttime minimum temperatures were averaged to generation average daily temperature (ADT) data set for each of the five dates. Five ADT values for each pixel were used to fit a sine curve describing the theoretical annual surface temperature response as defined by a solution of a one-dimensinal heat flow equation. Linearization of the equation produced estimates of MAST and AMP plus associated confidence statistics. MAST values were grouped into classes and displayed on a color video screen. Diurnal surface temperatures and MAST were primarily correlated with elevation.
Document ID
19830021482
Acquisition Source
Legacy CDMS
Document Type
Thesis/Dissertation
Authors
Day, R. L. (Pennsylvania State Univ. University Park, PA, United States)
Petersen, G. W. (Pennsylvania State Univ. University Park, PA, United States)
Date Acquired
September 4, 2013
Publication Date
April 1, 1983
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
NASA-CR-172882
E83-10355
NAS 1.26:172882
Accession Number
83N29753
Funding Number(s)
CONTRACT_GRANT: NAS5-26612
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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