EXPERT SYSTEM-BASED MINERAL MAPPING IN NORTHERN DEATH-VALLEY, CALIFORNIA NEVADA, USING THE AIRBORNE VISIBLE INFRARED IMAGING SPECTROMETER (AVIRIS)

被引:200
作者
KRUSE, FA [1 ]
LEFKOFF, AB [1 ]
DIETZ, JB [1 ]
机构
[1] UNIV COLORADO,DEPT GEOL SCI,BOULDER,CO 80309
基金
美国国家航空航天局;
关键词
D O I
10.1016/0034-4257(93)90024-R
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Integrated analysis of imaging spectrometer data and field spectral measurements were used in conjunction with conventional geologic field mapping to characterize bedrock and surficial geology at the northern end of Death Valley, California and Nevada. A knowledge-based expert system was used to automatically produce image maps showing the principal surface mineralogy from Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) data. Linear spectral unmixing of the AVIRIS data allowed further determination of relative mineral abundances and identification of mineral assemblages and mixtures. The imaging spectrometer data show the spatial distribution of spectrally distinct minerals occurring both as primary rock-forming minerals and as alteration and weathering products. Field spectral measurements were used to verify the mineral maps and field mapping was used to extend the remote sensing results. Geographically referenced image maps produced from these data form new base maps from which to develop improved understanding of the processes of deposition and erosion affecting the present land surface.
引用
收藏
页码:309 / 336
页数:28
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