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Floods of July 18-20, 1996, in northern Illinois
Robert R. Holmes Jr., Amanda Kupka
1997, Open-File Report 97-425
Record flooding occurred on many streams in northern Ilinois during July 18-20, 1996. Over 16 inches of rain fell at some locations during and just prior to this period. Peak of record discharges were recorded at 19 U.S. Geological Survey (USGS) streamflow-gaging stations. The USGS, in cooperation with the Illinois...
Geology of Point Reyes National Seashore and vicinity, California: A digital database
Jospeh C. Clark, Earl E. Brabb
1997, Open-File Report 97-456
This Open-File report is a digital geologic map database. This pamphlet serves to introduce and describe the digital data. There is no paper map included in the Open-File report. The report does include, however, a PostScript plot file containing an image of the geologic map sheet with...
Ecosystem history of South Florida; Biscayne Bay sediment core descriptions
S. E. Ishman
1997, Open-File Report 97-437
The 'Ecosystem History of Biscayne Bay and the southeast Coast' project of the U.S. Geological Survey is part of a multi-disciplinary effort that includes Florida Bay and the Everglades to provide paleoecologic reconstructions for the south Florida region. Reconstructions of past salinity, nutrients, substrate, and water quality are needed to...
Geology and mineral resource assessment of the Venezuelan Guayana Shield at 1:500,000 scale; a digital representation of maps published by the U.S. Geological Survey
Paul G. Schruben, J. C. Wynn, Floyd Gray, D. P. Cox, J.H. Sterwart, W. E. Brooks
1997, Data Series 46
This CD-ROM contains vector-based digital maps of the geology and resource assessment of the Venezuela Guayana Shield originally published as paper maps in 1993 in U. S. Geological Survey Bulletin 2062, at a scale of 1:1 million and revised in 1993-95 as separate maps at a scale of 1:500,000. Although...
Regional water table (1996) and water-level changes in the Mojave River, the Morongo, and the Fort Irwin ground-water basins, San Bernardino County, California
Gregory O. Mendez, Allen H. Christensen
1997, Water-Resources Investigations Report 97-4160
The Mojave River, the Morongo, and the Fort Irwin ground-water basins lie in the southwestern part of the Mojave Desert Region of southern California. These basins supply ground water to local water districts, military bases, and private wells. The rapid growth in population in these basins,...
Flood of March 1997 in southern Ohio
K.S. Jackson, S.A. Vivian, F.J. Diam, C.J. Crecelius
1997, Water-Resources Investigations Report 97-4149
Rainfall amounts of up to 12 inches produced by thunderstorms during March 1-2, 1997 resulted in severe flooding throughout much of southern Ohio. Eighteen counties were declared Federal and State disaster areas. Cost estimates of damage in Ohio from the flooding are nearly $180 million. About 6,500 residences and more...
Changes in bottom-surface elevations in three reservoirs on the lower Susquehanna River, Pennsylvania and Maryland, following the January 1996 flood — Implications for nutrient and sediment loads to Chesapeake Bay
Michael J. Langland, Robert A. Hainly
1997, Water-Resources Investigations Report 97-4138
The Susquehanna River drains about 27,510 square miles in New York, Pennsylvania, and Maryland, contributes nearly 50 percent of the freshwater discharge to the Chesapeake Bay, and contributes nearly 66 percent of the annual nitrogen load, 40 percent of the phosphorus load, and 25 percent of the suspended-sediment load from...
Data Base for Assessment of Streambed Scour and Channel Instability at Selected Bridges in Indiana, 1991–95
Mark S. Hopkins, Bret A. Robinson
1997, Open-File Report 1997–0419
The U.S. Geological Survey, in cooperation with the Indiana Department of Transportation, has collected data at 5,587 bridges in Indiana built with federal aid. These data, which can be useful for assessing Streambed scour and channel instability, are maintained in a computerized data base at the U.S. Geological Survey in...