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Proceedings Paper

Analysis of VIS-LWIR hyperspectral image data for detailed geologic mapping
Author(s): Timothy Bowers
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Paper Abstract

Research is being conducted into the usefulness of hyperspectral data for detailed geologic mapping applications. The data being analyzed were collected by the HYDICE (VIS-SWIR) and SEBASS (LWIR) airborne imaging spectrometers. Hyperspectral data provides a means of identifying surface minerology, which indicates lithology. In addition, because the data are collected in image format, photo-geologic observations can be made, such as the presence and orientation of stratification and faulting. The results of hyperspectral-based geologic mapping are summarized for an area of volcanic and sedimentary rocks in southwest Nevada. Analysis of the data revealed 11 mineral endmembers representing eight lithologic units. The hyperspectral-derived maps were directly compared to the best ground-based geologic maps available. Results indicate the ability to produce general geologic maps at scales better than 1:24,000 using 1-meter resolution airborne spectroscopy. Also, a more thorough mapping was achieved because of the increased compositional information gained by using both eht SWIR and LWIR.

Paper Details

Date Published: 2 August 2002
PDF: 12 pages
Proc. SPIE 4725, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery VIII, (2 August 2002); doi: 10.1117/12.478742
Show Author Affiliations
Timothy Bowers, Spectral Information Technology Applications Ctr. (United States)

Published in SPIE Proceedings Vol. 4725:
Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery VIII
Sylvia S. Shen; Paul E. Lewis, Editor(s)

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