Publications
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Mapping of hydrothermal alteration in the Cuprite mining district, Nevada, using aircraft scanner images for the spectral region 0.46 to 2.36µm Mapping of hydrothermal alteration in the Cuprite mining district, Nevada, using aircraft scanner images for the spectral region 0.46 to 2.36µm
Color composites of Landsat Multispectral Scanner ratio images that display variations in the intensity of ferric-iron absorption bands are highly effective for mapping limonitic altered rocks but are ineffective for mapping nonlimonitic altered rocks. Analysis of 0.45- to 2.5-µm field and laboratory spectra shows that iron-deficient opalized rocks in the Cuprite mining district, Nevada...
Authors
M. J. Adams, Roger P. Ashley, L. C. Rowan, Alexander F.H. Goetz, A.B. Kahle
The 1973 distribution and abundance of breeding ospreys in the Chesapeake Bay The 1973 distribution and abundance of breeding ospreys in the Chesapeake Bay
An aerial survey in association with several intensive ground surveys yielded the first estimate of the size of the osprey (Pandion haliaetus carolinensis) nesting population in Chesapeake Bay. The 1973 population was estimated at 1,450 ± 30 pairs, of which 713 were on the western shore and 737 on the eastern shore. A small percentage of nonbreeders (possibly 2-5 percent) may be included...
Authors
Charles J. Henny, Morton M. Smith, Vernon D. Stotts
Aerial surveys of waterfowl production in North America, 1955-71 Aerial surveys of waterfowl production in North America, 1955-71
No abstract available.
Authors
Charles J. Henny, David R. Anderson, Richard S. Pospahala