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Record Details

Record 72 of 10089
Discrimination of active and inactive sand from remote sensing - Kelso dunes, Mojave Desert, California
External Online Source: doi:10.1016/0034-4257(91)90078-K
Author and Affiliation:
Paisley, Elizabeth C. I.(Arizona State Univ., Tempe, AZ, United States)
Lancaster, Nicholas(Arizona State Univ., Tempe, AZ, United States)
Gaddis, Lisa R.(Arizona State Univ., Tempe, AZ, United States)
Greeley, Ronald(Arizona State University, Tempe, United States)
Abstract: Landsat TM images, field data, and laboratoray reflectance spectra were examined for the Kelso dunes, Mojave Desert, California to assess the use of visible and near-infrared (VNIR) remote sensing data to discriminate aeolian sand populations on the basis of spectral brightness. Results show that areas of inactive sand have a larger percentage of dark, fine-grained materials compared to those composed of active sand, which contain less dark fines and a higher percentage of quartz sand-size grains. Both areas are spectrally distinct in the VNIR, suggesting that VNIR spectral data can be used to discriminate active and inactive sand populations in the Mojave Desert. Analysis of laboratory spectra was complicated by the presence of magnetite in the active sands, which decreases their laboratory reflectance values to those of inactive sands. For this application, comparison of TM and laboratory spectra suggests that less than 35 percent vegetation cover does not influence the TM spectra.
Publication Date: Sep 01, 1991
Document ID:
19920031863
(Acquired Nov 22, 1995)
Accession Number: 92A14487
Subject Category: EARTH RESOURCES AND REMOTE SENSING
Document Type: Journal Article
Publication Information: Remote Sensing of Environment (ISSN 0034-4257); 37; 153-166
Publisher Information: United States
Contract/Grant/Task Num: NAGW-2102
Financial Sponsor: NASA; United States
Organization Source: Arizona State Univ.; Tempe, AZ, United States
Description: 14p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: DESERTIFICATION; IMAGE ANALYSIS; REMOTE SENSING; SANDS; MAGNETITE; MOJAVE DESERT (CA); SPECTRAL REFLECTANCE; THEMATIC MAPPERS (LANDSAT)
Imprint And Other Notes: Remote Sensing of Environment (ISSN 0034-4257), vol. 37, Sept. 1991, p. 153-166.
Availability Source: Other Sources
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