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Page 5766, results 144126 - 144150

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Annotated bibliography on artificial recharge of ground water, 1955-67
Donald C. Signor, Douglas J. Growitz, William Kam
1970, Water Supply Paper 1990
Artificial ground-water recharge has become more important as water use by agriculture, industry, and municipalities increases. Water management agencies are increasingly interested in potential use of recharge for pollution abatement, waste-water disposal, and re-use and reclamation of locally available supplies. Research projects and theoretical analyses of operational recharge systems show...
Digital computer terrain mapping from multispectral data, and evaluation of proposed Earth Resources Technology Satellite (ERTS) data channels, Yellowstone National Park preliminary report
Harry Wynn Smedes, K. L. Pierce, Marc G. Tanguay, R.M. Hoffer
1970, Open-File Report 70-307
Digital computer processing of 12 wavelength bands of visible and reflective infrared scanner data has resulted in successful automatic computer mapping of eight terrain units in a Yellowstone National Park test site. Target areas in the scene were selected for training the computer. Statistical parameters of radiance such as mean,...
Analyses of rock and stream-sediment samples from the Craig C-6 Quadrangle, Alaska
Allen L. Clark, Henry C. Berg, Donald A. Grybeck, A. Thomas Ovenshine, Raymond Wehr
1970, Open-File Report 70-70
Analytical data for 26 rock and 8 stream-sediment samples from the Craig C-6, 1:63,360-scale quadrangle are presented in this report, together with a statistical treatment of the data. The samples were collected in 1969 as part of the Heavy Metals Program of the U.S. Geological Survey.The most comprehensive discussion of...
A mineral reconnaissance of the Jabal Sahah quadrangle, Kingdom of Saudi Arabia
Jesse William Whitlow
1970, Open-File Report 70-367
A mineral reconnaissance of the Jabal Sahah quadrangle, Kingdom of Saudi Arabia, showed the presence of the anomalous elements silver, beryllium, molybdenum, niobium, tin, and tungsten and of anomalous amounts of chromium, nickel, lead, titanium, and vanadium. All anomalies are low except one for tin and one for tungsten in...
Geologic studies of Yellowstone National Park imagery using an electronic image enhancement system
Harry Wynn Smedes
1970, Open-File Report 70-306
This report describes the image enhancement system developed by the Philco-Ford Corporation; the kinds of enhancement attained; the results obtained from various kinds of remote-sensing imagery (mainly black and white multiband, color, color infrared, thermal infrared, and side-looking K-band radar) of parts of Yellowstone National Park; and possible additional fields...