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

184743 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 5297, results 132401 - 132425

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Biota and biological principles of the aquatic environment
P. E. Greeson, editor(s)
1982, Circular 848-A
This is the third of several compilations of briefing papers on water quality by the U.S. Geological Survey. Each briefing paper is prepared in a simple, nontechnical, easy-to-understand manner. This U.S. Geological Survey Circular contains papers on selected organic substances in water. Briefing papers are included on ' Why study...
Water-level maps of the alluvial aquifer, northwestern Mississippi, September 1981
Daphne Darden
1982, Open-File Report 82-574
The study area, locally known as "the Delta", covers the Mississippi River Alluvial Plain in northwestern Mississippi. The Delta is a nearly flat southward sloping surface characterized by oxbow lakes, abandoned stram channels, natural levees, backswamp areas, and bayous.The accompanying maps were prepared to show the effects of ground-water withdrawal...
A generic guide to the larvae of the Nearctic Tanytarsini, (Chironomidae:diptera)
J.W. Steiner, J.S. Doughman, C.R. Moore
1982, Open-File Report 82-768
Larvae of the tribe Tanytarsini occur in nearly every aquatic habitat in North America where they act as primary consumers in the food chain. This new taxonomic guide overcomes some deficiencies in existing keys to this tribe and the reviewed and updated taxonomy enables identification of the larvae that may...
Use of flumes in metering discharge at gaging stations
F. A. Kilpatrick, V.R. Schneider
1982, Open-File Report 82-871
Flumes for metering discharge are usually of two general types--critical-flow flumes and supercritical-flow flumes. In this report the principles underlying the design of each are discussed, the most commonly used flumes of each of the two types are described, and discharge ratings for each are presented. Considerations in choosing and...
Devonian and Mississippian rocks of the northern Antelope Range, Eureka County, Nevada
Richard Kenneth Hose, A. K. Armstrong, A. G. Harris, B. L. Mamet
1982, Professional Paper 1182
Lower through Upper Devonian rocks of the northern Antelope Range, Nev., consist of four formational rank units more than 800 m thick, separated from Mississippian units by an unconformity. The lower three Devonian units, the Beacon Peak Dolomite, McColley Canyon Formation, and Denay Limestone are known in other areas; the...
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: October 1982
John B. Townshend, J.E. Papp, E.A. Sauter, L.Y. Torrence, T.K. Cunningham
1982, Open-File Report 82-300-J
The preliminary geomagnetic data included here is made available to scientific personnel and organizations, as part of a cooperative effort and on a data exchange basis because of the early need by some users. To avoid delay, all of the data is copied from original forms processed at the observatory;...
Production and decomposition of forest litter fall on the Apalachicola River flood plain, Florida: Chapter B, Apalachicola River quality assessment
John F. Elder, Duncan J. Cairns
1982, Water Supply Paper 2196-B
Measurements of litter fall (leaves and other particulate organic material) and leaf decomposition were made on the bottom-land hardwood swamp of the Apalachicola River flood plain in 1979-80. Litter fall was collected monthly from nets located in 16 study plots. The plots represented five forest types in the swamp and...
Habitat Suitability Index Models: Black bullhead
Robert J. Stuber
1982, FWS/OBS 82/10.14
The native range of the black bullhead (Ictalurus melas) extends from North Dakota eastward through southern Canada to the upper tributaries of the St. Lawrence River and southward and westward to Texas and northern Mexico (Trautman 1957; Hubbs and Lagler 1958: Scott and Crossman 1973). It has been wide ly...
Data management system for USGS/USEPA urban hydrology studies program
W.H. Doyle Jr., J.A. Lorens
1982, Open-File Report 82-442
A data management system was developed to store, update, and retrieve data collected in urban stormwater studies jointly conducted by the U.S. Geological Survey and U.S. Environmental Protection Agency in 11 cities in the United States. The data management system is used to retrieve and combine data from USGS data...