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Page 5574, results 139326 - 139350

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Mercury in the Carson and Truckee River basins of Nevada
A. S. Van Denburgh
1973, Open-File Report 73-352
Upstream from major pre-1900 ore milling in the Carson and Truckee River basins, "background" concentrations of total mercury in the upper 1 to 3 inches of sand- to clay-sized stream-bottom sediment are less than 0.1 ug/g (microgram per gram). Downstream, measured concentrations were as much as 200 times the background...
Floods in the Iowa River basin upstream from Coralville Lake, Iowa
Albert J. Heinitz
1973, Open-File Report 73-106
Flood information is reported for 207 miles of the main stem, 23 miles on the West Branch, and 23 miles on the East Branch, of the Iowa River. The information will be of use to those concerned with the design of bridges and other structures and the conduct of various...
Review of wastewater problems and wastewater-management planning in the San Francisco Bay region, California
Walter G. Hines
1973, Open-File Report 73-112
The San Francisco Bay region has suffered adverse environmental effects related to the discharge of municipal-, industrial-, and agricultural- wastewater and storm-water runoff. Specific pollutional properties of theses discharges are not well understood in all cases although the toxic materials and aquatic-plant nutrients (biostimulants) found in municipal and industrial...
Atlas of Mars, Arcadia quadrangle, MC-3
United States Geological Survey
1973, Open-File Report 73-327
This mosaic is made with computer enhanced Mariner 9 pictures, rectified and scaled to a Lambert conformal projection. Computer processing was performed by the Image Processing Laboratory (IPL) of the Jet Propulsion Laboratory (JPL). Processing included contrast enhancement and high-pass filtering which accentuates topographic features while subduing albedo variations. Photographic...
Flood of September 3, 1972, in Hillsboro, New Mexico
Loyd A. Waite
1973, Open-File Report 73-356
Four deaths, two persons seriously injured, and property damage estimated at $846,500 resulted from a flood that struck the village of Hillsboro, N. Mex. during the early morning hours of September 3, 1972. Hillsboro is situated at the confluence of Percha Creek and its main tributary, North Percha Creek. Heavy rainfall...
Velocity and depth measurements for use in computation of reaeration coefficients
John S. Zogorski, Peter W. Anderson, Owen O. Williams
1973, Open-File Report 73-369
Empirical computation of reaeration coefficients generally requires knowledge of mean velocity and mean depth of a stream. A practical method for obtaining this knowledge is described herein. The method involves time-of-travel, streamflow, and cross-sectional measurements, the development of discharge-velocity curves, streamflow profiles, and the computation of cross-sectional areas. Values for...
Mars maps
Water Resources Division, U.S. Geological Survey
1973, Open-File Report 73-346
Atlas of Mars, Mare Acidalium quadrangle, MC-4
United States Geological Survey
1973, Open-File Report 73-328
This mosaic is made with computer enhanced Mariner 9 pictures, rectified and scaled to a Lambert conformal projection. Computer processing was performed by the Image Processing Laboratory (IPL) of the Jet Propulsion Laboratory (JPL). Processing included contrast enhancement and high-pass filtering which accentuates topographic features while subduing albedo variations. Photographic...
Atlas of Mars, Margaritifer Sinus Quadrangle, MC-19
United States Geological Survey
1973, Open-File Report 73-335
This mosaic was made with Mariner 9 pictures provided by the Jet Propulsion Laboratory (JPL), California Institute of Technology. The Image Processing Laboratory (IPL) of JPL processed the digital pictures to remove image artifacts and geometric distortions, to enhance high - frequency topographic detail while subduing low-frequency albedo variation, and...