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Remote spectral identification of surface aggregates by thermal imaging techniques - Progress reportThe NASA Thermal Infrared Multispectral Scanner (TIMS) has been successfully used for the remote identification of a variety of soil and aggregate deposits in vegetated areas of two states. Over three million cubic meters of gravel deposits were identified from the imagery during a two year period. Verification was accomplished by ground reconnaissance using drilling machinery and by ground instrumentation. The method has been used to differentiate between fine and coarse grained soils, and gravel deposits. The deposits were found to have been naturally sorted according to grain size by depositional processes, providing each deposit with distinct spectral qualities. It was found that the masking effects of relatively dense vegetation were largely overcome by using imagery acquired at higher altitudes above terrain than 9000 meters, due to loss of resolution of the finer detail. The mechanics of image resolution are discussed, a method of data analysis used is described, and sample spectral signatures are illustrated.
Document ID
19930040213
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Scholen, Douglas E.
(NASA John C. Stennis Space Center Bay Saint Louis, MS, United States)
Clerke, William H.
(USDA, Forest Service, Atlanta GA, United States)
Burns, Gregory S.
(NASA Science and Technology Lab. Bay Saint Louis, MS, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: Earth and atmospheric remote sensing; Proceedings of the Meeting, Orlando, FL, Apr. 2-4, 1991 (A93-24176 08-42)
Publisher: Society of Photo-Optical Instrumentation Engineers
Subject Category
Earth Resources And Remote Sensing
Accession Number
93A24210
Distribution Limits
Public
Copyright
Other

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