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Page 5239, results 130951 - 130975

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Chemical analyses of surface water in Illinois, 1958–74—Volume II, Illinois River basin and Mississippi River tributaries north of Illinois River basin
R. W. Healy, L.G. Toler
1978, Water-Resources Investigations Report 78-23
Samples of surface water were collected and analyzed by the Illinois Environmental Protection Agency and its predecessor, the Stream Pollution Control Bureau of the Illinois Department of Public Health. The results for the period 1958 to 1974 are presented in tabular form and the history of sampling and analytical methods...
Map showing saturated thickness of unconsolidated aquifer in southwestern Kansas, January 1978
Marilyn E. Pabst
1978, Open-File Report 78-969
The principal aquifer in the 13-county area of southwestern Kansas occurs in the heterogeneous, unconsolidated alluvial deposits of Tertiary and Quaternary age.  The main body of this ground-water reservoir is designated as the unconsolidated aquifer.The map showing the saturated thickness of deposits in the unconsolidated aquifer was prepared by comparing...
Chemical analyses of surface water in Illinois, 1958–74—Volume III, Ohio River tributaries and Mississippi River tributaries south of the Illinois River basin
R. W. Healy, L.G. Toler
1978, Water-Resources Investigations Report 78-24
Samples of surface water were collected and analyzed by the Illinois Environmental Protection Agency and its predecessor, the Stream Pollution Control Bureau of the Illinois Department of Public Health. The results for the period 1958 to 1974 are presented in tabular form and the history of sampling and analytical methods...
Unsteady streamflow simulation using a linear implicit finite-difference model
Larry F. Land
1978, Water-Resources Investigations Report 78-59
A computer program for simulating one-dimensional subcritical, gradually varied, unsteady flow in a stream has been developed and documented. Given upstream and downstream boundary conditions and channel geometry data, roughness coefficients, stage, and discharge can be calculated anywhere within the reach as a function of time.The program uses a linear...
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska: March 1978
J.B. Townshend, J.E. Papp, S.P. Tilton
1978, Open-File Report 78-300-C
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;...