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

183909 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 4715, results 117851 - 117875

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
A review of circulation and mixing studies of San Francisco Bay, California
Lawrence H. Smith
1987, Circular 1015
A description of the major characteristics and remaining unknowns of circulation and mixing in San Francisco Bay has been constructed from a review of published studies. From a broad perspective San Francisco Bay is an ocean-river mixing zone with a seaward flow equal to the sum of the river inflows...
The Alaska Mineral Resource Assessment Program: Background information to accompany folio of geologic and mineral resource maps of the Circle quadrangle, Alaska
Helen Laura Foster, W. D. Menzie, J. W. Cady, S. L. Simpson, J. N. Aleinikoff, Frederic H. Wilson, R. B. Tripp
1987, Circular 986
The geology, geochemistry, geophysics, and Landsat imagery of the Circle quadrangle were investigated by an interdisciplinary research team for the purpose of assessing the mineral potential of the area. The quadrangle covers approximately 15,765 km2 in east-central Alaska; most of it is included in the mountainous Yukon-Tanana Upland physiographic division,...
Mineralogical characterization of the Shelburne Marble; a Vermont marble test stone used to study the effects of acid rain
E. S. McGee
1987, Open-File Report 87-447
The Shelburne Marble of Vermont has been used extensively in buildings and monuments and for this reason has been selected as a test stone for the National Acid Precipitation Assessment Program (NAPAP) stone exposure studies. Mineralogical characterization of fresh Shelburne Marble provides a basis for recognizing mineralogical changes that may...
Effects of surface coal mining and reclamation on the geohydrology of six small watersheds in west-central Indiana
Jeffrey D. Martin, Richard F. Duwelius, Charles G. Crawford
1987, Open-File Report 87-210
The watersheds studied include mined and reclaimed; mined and unreclaimed; and unmined, agricultural land uses, and are each < 3 sq mi in area. Surface water, groundwater, and meteorologic data for the 1981 and 1982 water years were used to describe and compare hydrologic systems of the six watersheds and...
GSPOST Version 1.0: A program to plot symbols and post numerical data from ASCII tables on regional scale maps using an IBM PC (or compatible) microcomputer and plotter
G.I. Selner, Cole L. Smith, Richard B. Taylor
1987, Open-File Report 87-127
GSPOST is a microcomputer program that takes data from a properly formatted ASCII file and drives a plotter, to make maps displaying information associated with geographic points by drawing symbols and/or posting numerical data at latitude-longitude specified sites....
Assessment of water quality and factors affecting dissolved oxygen in the Sangamon River, Decatur to Riverton, Illinois, summer 1982
A.R. Schmidt, J. K. Stamer
1987, Water-Resources Investigations Report 87-4024
Water quality and processes that affect the dissolved-oxygen concentration in a 45.9 mile reach of the Sangamon River from Decatur to Riverton, Illinois, were determined from data collected during low-flow periods in the summer of 1982. Relations among dissolved oxygen, water discharge, biochemical oxygen demand, ammonia and nitrite plus nitrate...
Floodflow characteristics of Filbin Creek for pre- and post-construction conditions, 1986, at North Charleston, South Carolina
C.L. Sanders Jr.
1987, Water-Resources Investigations Report 87-4157
A study to determine the effect of the construction of a shopping and business center, and of the construction and improvement of several highways on floodflow in the Filbin Creek drainage basin near North Charleston, South Carolina was performed. Discharge hydrographs were synthesized using computerized U.S. Soil Conservation Service unit...
The effects of vertical motion on the performance of current meters
K.G. Thibodeaux, J. C. Futrell II
1987, Water-Resources Investigations Report 87-4147
A series of tests to determine the correction coefficients for Price type AA and Price type OAA current meters, when subjected to vertical motion in a towing tank, have been conducted. During these tests, the meters were subjected to vertical travel that ranged from 1.0 to 4.0 ft and vertical...
Effects of land use on ground-water quality in central Florida — Preliminary results: U.S. Geological Survey Toxic Waste — Ground-water Contamination Program
A. T. Rutledge
1987, Water-Resources Investigations Report 86-4163
Groundwater is the principal source of drinking water in central Florida. The most important hydrogeologic unit is the Floridan aquifer system, consisting of fractured limestone and dolomite limestone. Activities of man in areas of recharge to the Floridian aquifer system that may be affecting groundwater quality include: (1) the use...
Hydrologic effects of artificial-recharge experiments with reclaimed water at East Meadow, Long Island, New York
B.J. Schneider, H. F. Ku, E. T. Oaksford
1987, Water-Resources Investigations Report 85-4323
Artificial recharge experiments were conducted at East Meadow, Long Island, New York, from October 1982 through January 1984 to evaluate the degree of groundwater mounding and the chemical effects of artificially replenishing the groundwater system with tertiary-treated wastewater. More than 800 million gallons of treated effluent was returned to the...
Sediment discharge in Muddy Creek and the effect of sedimentation rate on the proposed Wolford Mountain reservoir near Kremmling, Colorado
B. C. Ruddy
1987, Water-Resources Investigations Report 87-4011
Stream-discharge data collected from May 1982 through October 1985 and sediment data collected from March 1985 through October 1985 at stream flow-gaging station 09041500 Muddy Creek at Kremmling, Colorado, were used to determine total-sediment discharge into the proposed Wolford Mountain Reservoir. The data were divided on a seasonal basis, and...
Rainfall and runoff quantity and quality data collected at four urban land-use catchments in Fresno, California, October 1981-April 1983
R.N. Oltmann, J. R. Guay, J. M. Shay
1987, Open-File Report 84-718
Data were collected as part of the National Urban Runoff Program to characterize urban runoff in Fresno, California. Rainfall-runoff quantity and quality data are included along with atmospheric dry-deposition and street-surface particulate quality data. The data are presented in figures and tables that reflect four land uses: industrial, single-dwelling residential,...
Data for selected pesticides and volatile organic compounds for wells in the western San Joaquin Valley, California, February to July 1985
J. M. Neil
1987, Open-File Report 87-48
During February to July 1985, water samples were collected from 55 wells in the western San Joaquin Valley, California, for chemical analysis to determine if 20 selected pesticides and 26 volatile organic compounds were present. Twenty-six of the sampled wells are completed in the shallow unconfined regional aquifer and 29...