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Page 5253, results 131301 - 131325

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Summary of the estimated iron resources of the Marquette and Gogebic Iron Ranges of Michigan
William F. Cannon
1978, Open-File Report 78-153
The U. S. Geological Survey in cooperation with the Geological Survey Division of the Michigan Department of Natural Resources has recently completed detailed studies of iron-bearing rocks in the Marquette and Gogebic iron ranges in the northern peninsula of Michigan. The study included mapping the surface distribution of the iron-bearing...
Effects of permafrost on stream channel behavior in Arctic Alaska
Kevin M. Scott
1978, Professional Paper 1068
Sites with drainage areas ranging from 88 to 12,200 sq km were monitored on five streams in northern Alaska during the breakup in 1976 to determine (1) the effects of frozen bed and bank material on channel behavior, and (2) the importance of the annual breakup flood in forming the...
On the development of strong-motion instrument networks in the United States
R.B. Matthiesen
1978, Open-File Report 78-1024
This report outlines a plan for the distribution of strong-motion instrumentation throughout the United States. The present "national" network of strong-motion instrumentation has evolved through the merger of several programs initiated by different agencies and organizations with objectives ranging from research to regulation. It is the result of the coordination...
The hydrothermal system of Long Valley Caldera, California
M.L. Sorey, Robert Edward Lewis, F. H. Olmsted
1978, Professional Paper 1044-A
Long Valley caldera, an elliptical depression covering 450 km 2 on the eastern front of the Sierra Nevada in east-central California, contains a hot-water convection system with numerous hot springs and measured and estimated aquifer temperatures at depths of 180?C to 280?C. In this study we have synthesized the results...
Annual peak discharges from small drainage areas in Montana through September 1977
R. J. Omang, J. A. Hull
1978, Open-File Report 78-219
Annual peak stage and stream-discharge data have been collected and tabulated for crest-stage gaging sites in Montana. The crest-stage program was begun in July 1955 to investigate the magnitude and frequency of floods from small drainage areas. The program has expanded from 45 crest-stage gaging stations initially to 191 stations...
Water levels in observation wells in Kentucky : 1935 through 1976
Douglas V. Whitesides, John Michael Kernodle, David W. Leist
1978, Open-File Report 78-129
Hydrographs show water levels in observation wells in Kentucky from 1935 through 1976. The water levels in these wells are measured as part of the national observation well network and in cooperation with the University of Kentucky, Kentucky Geological Survey. The hydrographs are arranged by the five physiograhic regions of...
Suspended-sediment transport in the Big Eau Pleine River Basin, central Wisconsin
S. M. Hindall
1978, Open-File Report 78-313
Suspended-sediment yields in the Big Eau Pleine River basin are low to moderate in comparison with other drainage basins in Wisconsin. Average annual yield in the Big Eau Pleine River near Stratford is 32.tons per square mile, with an annual yield ranging from 1.0 to 64 tons per square mile....
Status of Space Oblique Mercator (SOM) projection (EC 64 Landsat)
Alden P. Colvocoresses, John Parr Snyder
1978, Open-File Report 78-682
The Space Oblique Mercator projection, a concept that was originated by Colvocoresses in 1974, has been mathematically implemented as the first map projection to provide continuous mapping of satellite imagery true to scale along the groundtrack, and within a few millionths of accurate conformal projection. Specifically designed for Landsat (formerly...
Floods of September 1970 in Arizona, Utah, Colorado, and New Mexico
R.H. Roeske, Maurice E. Cooley, B. N. Aldridge
1978, Water Supply Paper 2052
During September 5-7, 1970, unusually large floods occurred in the mountains of central Arizona and in the Four Corners area of Arizona, Utah, Colorado, and New Mexico. Flooding also occurred in southern and northeastern Arizona. The record-high rainfall of September 5 occurred when a mass of moist tropical air from...
Application of digital profile modeling techniques to ground-water solute transport at Barstow, California
Stanley G. Robson
1978, Water Supply Paper 2050
This study investigated the use of a two-dimensional profile-oriented water-quality model for the simulation of head and water-quality changes through the saturated thickness of an aquifer. The profile model is able to simulate confined or unconfined aquifers with nonhomogeneous anisotropic hydraulic conductivity, nonhomogeneous specific storage and porosity, and nonuniform saturated...
EROS Data Center Landsat digital enhancement techniques and imagery availability
Wayne G. Rohde, Jinn Kai Lo, Russell A. Pohl
1978, Canadian Journal of Remote Sensing (4) 63-76
The US Geological Survey's EROS Data Center (EDC) is experimenting with the production of digitally enhanced Landsat imagery. Advanced digital image processing techniques are used to perform geometric and radiometric corrections and to perform contrast and edge enhancements. The enhanced image product is produced from digitally preprocessed Landsat computer compatible...
Use of a remote computer terminal during field checking of Landsat digital maps
Charles J. Robinove, C.F. Hutchinson
1978, Journal of Research of the U.S. Geological Survey (6) 511-514
Field checking of small-scale land classification maps made digitally from Landsat data is facilitated by use of a remote portable teletypewriter terminal linked by teleplume to the IDIMS (Interactive Digital Image Manipulation System) at the EDC (EROS Data Center), Sioux Falls, S. Dak. When field checking of maps 20 miles...
The metallogenic role of east-west fracture zones in South America with regard to the motion of lithospheric plates (with an example from Brazil)
J. Kutina, William D. Carter, F.X. Lopez
1978, Jornal de Mineralogia (7) 97-110
The role of east-west fracture zones in South America is discussed with regard to global fracturing and the motion of lithospheric plates. A set of major NW-trending lineaments has been derived which show a tendency to be spaced equidistantly and may correspond to a set of east-west fractures in the...
Tectolinear interpretation of a 1:5,000,000 Landsat-1 mosaic compared with the structure of central and eastern United States
Jan Kutina, William D. Carter
1978, Global Tectonics and Metallogeny (1) 78-82
The pattern of lineaments and curvilinear features interpreted from a 1:5,000,000 mosaic of satellite images (Landsat-1 was superimposed on a simplified version of the Geological Map of the United States, 1:2,500,000 scale, showing the structural scheme of Central and Eastern United States. A comparison of the above two patterns, shown...
Hydrological applications of Landsat imagery used in the study of the 1973 Indus River flood, Pakistan
Morris Deutsch, F.H. Ruggles Jr.
1978, Journal of the American Water Resources Association (14) 261-274
During August and September 1973, the Indus River Valley of Pakistan experienced one of the largest floods on record, resulting in damages to homes, businesses, public works, and crops amounting to millions of rupees. Tremendous areas of lowlands were inundated along the Indus River and major tributaries. Landsat data made...
Flood damage assessment using computer-assisted analysis of color infrared photography
William H. Anderson
1978, Journal of Soil and Water Conservation (33) 283-286
Use of digitized aerial photographs for flood damage assessment in agriculture is new and largely untested. However, under flooding circumstances similar to the 1975 Red River Valley flood, computer-assisted techniques can be extremely useful, especially if detailed crop damage estimates are needed within a relatively short period of time.Airphoto interpretation...