Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

46638 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 1648, results 41176 - 41200

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Summary of U.S. Geological Survey investigations and hydrologic conditions in southwest Florida for 1979
H.C. Rollins
1981, Open-File Report 81-78
This report summarizes the hydrologic setting and the water-resources investigations in the Southwest Florida Water management District performed by the U.S. Geological Survey, Water Resources Division, for fiscal year 1979. Hydrologic conditions in southwest Florida are described and illustrated by hydrographs of selected surface-water, ground-water, and lake-stage data-collection sites. In...
Hydrologic monitoring in the coal fields of central Utah, August 1978-September 1979
Gregory C. Lines, Gerald G. Plantz
1981, Open-File Report 81-138
Surface-water quantity and quality were observed at 12 gaging stations downstream from mined and lease areas in the Wasatch Plateau, Book Cliff's, and Emery coal fields in central Utah. Measurements of base flow were made at 52 additional sites in the region. The report describes the hydrologic setting of this...
January 1981 water levels, and data related to water-level changes, western and south-central Kansas
Marilyn E. Pabst
1981, Open-File Report 81-1001
This report provides hydrologic data related to water-level measurements in observation wells in western and south-central Kansas during January 1981. Annual water-level measurements are made by personnel from the Division of Water Resources, Kansas State Board of Agriculture, and from the U.S. Geological Survey . State-agency support for this cooperative...
Ground-water quality along the Mojave River near Barstow, California, 1974-79
Lawrence A. Eccles
1981, Water-Resources Investigations Report 80-109
The quality of ground water in the alluvium along the usually dry Mojave River near Barstow, Calif., has been monitored since 1974. Degradation has occurred as a result of wastewater discharge and irrigation return. Characteristics of the degraded ground water include concentrations of dissolved solids exceeding 1,000 milligrams per liter,...
A 10-year plan to study the aquifer system of Indian Wells Valley, California
Paul Lipinski, Darwin D. Knochenmus
1981, Open-File Report 81-404
Water needs of the population of Indian Wells Valley, Calif., must be met through further development of ground-water resources. Studies show that annual ground-water pumpage there has increased since 1945 and has exceeded mean annual recharge since 1966. Continued and increased stress on the aquifer system of the valley is...
Catalog of earthquakes along the San Andreas fault system in central California, July-September 1977
S.M. Marks, L. Fluty
1981, Open-File Report 81-462
Numerous small earthquakes occur each day in the Coast Ranges of central California. The detailed study of these earthquakes provides a tool for gaining insight into the tectonic and physical processes responsible for the generation of damaging earthquakes. This catalog contains the fundamental parameters for earthquakes located within and adjacent...
Plankton studies in San Francisco Bay; II, Phytoplankton abundance and species composition, July 1977-December 1979
Raymond L. J. Wong, James E. Cloern
1981, Open-File Report 81-214
Data are presented on the phytoplankton species composition and abundance in San Francisco Bay from July 1977 through December 1979. Phytoplankton identification and enumerations were made at selected stations. Sample collections were made at selected stations in the main channel of the Bay from Rio Vista on the Sacramento River...
Single-channel seismic-reflection profiles and sidescan-sonar records collected on Georges Bank
David C. Twichell
1981, Open-File Report 81-438
Subbottom seismic-reflection, echo-sounding, and sidescan-sonar records were collected by the U.S. Geological Survey during two cruises over Georges Bank aboard the R/V OCEANUS (cruise 056, March 6-15, 1979 and cruise 067, August 6-13, 1979) (fig. 1). The data collected during these two cruises contributed to a study of bed-form types...
Preliminary design study for a National Digital Seismograph Network
Jon Peterson, Charles R. Hutt
1981, Open-File Report 81-1046
Recently, the National Research Council published a report by the Panel on National, Regional, and Local Seismograph Networks of the Committee on Seismology in which the principal recommendation was for the establishment of a national digital seismograph network (NDSN). The Panel Report (Bolt, 1980) addresses both the need and the...
Selected biological characteristics of streams in the southeastern Uinta Basin, Utah and Colorado
Ronald W. Naten, Richard H. Fuller
1981, Open-File Report 81-644
Biological sampling was carried out during 1976-78 in five streams in the southeastern Uinta Basin, Utah and Colorado, in order to provide baseline water-quality data for an area of potential oil-shale development. The biological activity in the streams sampled generally is limited by physical factors more so than by chemical...
Water resources data for Iowa, water year 1980
Water Resources Division, U.S. Geological Survey
1981, Water Data Report IA-80-1
This report was prepared by personnel of the Iowa district of the Water Resources Division of the U.S. Geological Survey under the supervision of D. K. Leifeste, District Chief, and Alfred Clebsch Jr., Regional Hydrologist, Central Region. It was done in cooperation with the State of Iowa and with other agencies. This report is one...
Annotated bibliography of remote sensing methods for monitoring desertification
A. S. Walker, Charles J. Robinove
1981, Circular 851
Remote sensing techniques are valuable for locating, assessing, and monitoring desertification. Remotely sensed data provide a permanent record of the condition of the land in a format that allows changes in land features and condition to be measured. The annotated bibliography of 118 items discusses remote sensing methods that may...
Dissolution of sphalerite in ferric chloride solution
Huai Su
1981, Open-File Report 81-609
The dissolution of sphalerite in acidic ferric chloride solution of polished flat surfaces and of spherical particle surface was investigated. Tests were conducted on sphalerite to study rate of dissolution by the effects of stirring speed, temperature, ferric and ferrous concentrations, purity, and particle size.Kinetic investigations were conducted in a...
Directory of member organizations of the National Water Data Exchange (NAWDEX)
Janet M. Nokes, Cassandra D. Blackwell
1981, Open-File Report 81-497
The National Water Data Exchange (NAWDEX) is a national confederation of water-oriented organizations working together to improve access to water data. It consists of member organizations from all sectors of the water-data community. This Directory provides the names, addresses, and telephone numbers of all NAWDEX member organizations and their designated...
Hydrologic reconnaissance of the Wasatch Plateau-Book Cliffs coal-fields area, Utah
Kidd M. Waddell, P. Kay Contratto, C. T. Sumsion, John R. Butler
1981, Water Supply Paper 2068
Data obtained during a hydrologic reconnaissance in 1975-77 in the Wasatch Plateau-Book Cliffs coal-fields area of Utah were correlated with existing long-term data. Maps were prepared showing average precipitation, average streamflow, stream temperature, ground- and surface-water quality, sediment yield, and geology. Recommendations were made for additional study and suggested approaches...