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Page 4943, results 123551 - 123575

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Selected hydrologic and climatologic data from the Prairie Dog Creek Basin, southeastern Montana, water year 1979
Lawrence E. Cary, Joel D. Johnson
1981, Open-File Report 81-412
Hydrologic and climatologic data are being collected in a 19-square-mile (49-square-kilometer) basin in southeastern Montana to provide a base for development, calibration, and verification of a precipitation-runoff model. The study area and data-collection stations within the area are shown on a map. A summary of data collected at each station...
Extraction and analysis of adenosine triphosphate from aquatic environments
Doyle W. Stephens, David J. Shultz
1981, Water-Resources Investigations Report 81-5
A variety of adenosine triphosphate (ATP) extraction procedures have been investigated for their applicability to samples from aquatic environments. The cold sulfuric-oxalic acid procedure was best suited to samples consisting of water, periphyton, and sediments. Due to cation and fulvic acid interferences, a spike with a known quantity of ATP...
Techniques for estimating magnitude and frequency of floods for Wisconsin streams
Duane H. Conger
1981, Open-File Report 80-1214
This report provides improved methods for estimating the magnitude and frequency of floods for Wisconsin streams. Proper design of hydraulic structures and adequate flood-plain management depend on this information. Multiple-regression techniques were used to develop equations for estimating flood frequencies at ungaged sites. The State is divided into five areas and...
Variations in climatic characteristics as related to evapotranspiration in South Park, central Park County, Colorado
Norman E. Spahr
1981, Water-Resources Investigations Report 80-86
Data collected from May through September in 1977, 1978, and 1979 at three stations were analyzed using an analysis of variance technique to determine variations in climatic characteristics in South Park, Colo. Knowledge of these climatic characteristics will aid in determining the amount of water that may be transferred from...
Rainfall-runoff hydrographs and basin characteristics data for small streams in Oklahoma
D. L. Bergman, Thomas L. Huntzinger
1981, Open-File Report 81-824
Rainfall with concordant runoff events recorded at 45 gages located in drainage basins of less than 30 square miles in Oklahoma are summarized. Selected basin characteristics which relate to storm runoff are described and tabulated for each gage site summarized. A tabulation is included which identifies drainage basins that produce...