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Page 4872, results 121776 - 121800

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Peak horizontal acceleration and velocity from strong motion records including records from the 1979 Imperial Valley, California, earthquake
William B. Joyner, David M. Boore, Ronald L. Porcella
1981, Open-File Report 81-365
We have taken advantage of the recent increase in strong-motion data at close distances to derive new attenuation relations for peak horizontal acceleration and velocity. Acceleration data from 183 recordings of 24 earthquakes and velocity data from 62 recordings of 10 earthquakes have been used. This new analysis uses a...
Quality of water and time of travel in Goodwater and Okatoma Creeks near Magee, Mississippi
Stephen J. Kalkhoff
1981, Open-File Report 81-1012
An intensive quality-of-water study was conducted during a period of generally low streamflow in Goodwater and Okatoma Creeks near Magee, Miss. During the August 12-14, 1980, study, the mean specific conductance of the water at all sites was less than 59 micromhos per centimeter; the dissolved-oxygen concentrations were greater than...
Quality of water in Tibbee Creek and tributaries near West Point, Mississippi
Stephen J. Kalkhoff
1981, Open-File Report 81-406
An intensive water-quality study was conducted on Tibbee Creek and two of its tributaries, Town Creek and Catalpa Creek, on June 19-22, 1979. The data were collected during a period of low discharge and high air temperatures. The water in Tibbee Creek and Catalpa Creek was of much better quality...
Analysis of Egyptian Geological Survey and Mining Department samples by rapid rock and atomic absorption procedures
Jean S. Kane, Hezekiah Smith
1981, Open-File Report 81-991
A suite of 165 samples from the Egyptian Geological Survey and Mining Department was analyzed for several elements in the Branch of Analytical Laboratories (BAL) of the U.S. Geological Survey by M. Iskander and S. Holyle during training here that focused on rapid-rock analytical procedures and on atomic-absorption spectrometric analyses....
Modification of the Tangborn short-term hydrometeorological model, with trial results from the Baker River basin, Washington
M.R. Karlinger, J. D. Wilson
1981, Open-File Report 81-694
This report presents a modification of the short-term hydrometeorological model (Tangborn, 1978) for estimating river-basin snowmelt runoff. A multiple linear regression replaces a nonlinear regression scheme to correct for temperature effects of snowmelt runoff. Results based on data from the Baker River basin, Washington, indicate that model performance is improved...
Biogeochemical variability of plants at native and altered sites, San Juan Basin, New Mexico
L. P. Gough, R. C. Severson
1981, Professional Paper 1134-D
The San Juan Basin is becoming a major energy resource region. The anticipated increase in strip mining for coal can be expected to alter the geochemical and biogeochemical environment. because such activities destroy the native vegetation communities, rearrange the rock strata, and disrupt natural soil development. This study investigated the...
An annotated bibliography of literature on Alaska water birds
Colleen M. Handel, Margaret R. Petersen, Robert E. Gill Jr., Calvin J. Lensink
1981, FWS/OBS 81/12
The demand for information on birds in Alaska has surged within the past few years, primarily because of the need to adequately assess the impacts of a wide range of planned developments. The accompanying increase in studies of avian populations has resulted in a growing need for a comprehensive bibliography...