One of the end products of the Spectroscopy Lab's research is materials maps. The new field of imaging spectroscopy allows specific absorption features, caused by chemical bonds in materials, to be mapped spatially. Materials maps are of minerals, mineral mixtures, vegetation (including species/communities and vegetation communities maps), water, ice and snow, atmospheric gases, environmental materials, and man-made materials.
221K GIF The map shown here is a mineral map from an AVIRIS scene flown over Cuprite, Nevada, in 1995. It shows the mapping of many different minerals.
This tutorial shows pseudo true color, false color mineral discrimination (as is commonly done with Landsat TM broadband imagers), and results from imaging spectroscopy analysis, all using data over the dual hydrothermal system at Cuprite Nevada. The latest 1995 AVIRIS data are used in the mineral mapping.
A presentation of how far imaging spectroscopy sensors and analysis has brought us. We are now able to map very specific materials through absorptions caused by chemical bonds. Imagine the ability to "see" individual chemicals, whether crystalline or amorphous solids, liquids, or gases. Imaging spectroscopy science is now a powerful tool!
Other papers on Cuprite
Summitville Mine Mapping mine drainage at Summitville, Colorado. Imaging spectroscopy is used to map clays, sulfates, iron oxides, amorphous iron-bearing minerals and more.
Animas Watershed analysis, San Juan Mountains, Colorado
Distribution of Acid-Generating and Acid-Buffering Minerals in the
Animas River Watershed as Determined by Imaging Spectroscopy
This paper shows vegetation species mapping done in the San Luis Valley, Colorado.
Also shown is senescence/stress indicator mapping in the same area.
Vegetation and Cryptobiotic Soils Mapping in Arid Regions
This paper shows how imaging spectroscopy mineral mapping can be used to
map lithology, which closely follows geologic formations.
This paper gives the equations necessary to correct AVIRIS data
before you register it to a base map. (Nov. 18, 1998)
U.S. Geological Survey,
a bureau of the U.S. Department of the Interior
This page URL= http://speclab.cr.usgs.gov/maps.html
This page is maintained by: Dr. Roger N. Clark firstname.lastname@example.org
Last modified June 9, 2000.