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Page 5994, results 149826 - 149850

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Time of travel of solutes in the East Fork Trinity River, November 1975; and Elm Fork Trinity River, December 1975; Trinity River basin, Texas
Dennis R. Myers, Raymond M. Slade Jr.
1976, Open-File Report 76-683
The U.S. Geological Survey, in cooperation with the North Central Texas Council of Governments, the Trinity River Authority of Texas, and the Texas Water Development Board, conducted two time-of-travel studies in the Trinity River basin in November and December, 1975.  Field data were collected on the East Fork Trinity River...
Flood frequency: expected and unexpected probabilities
D. M. Thomas
1976, Open-File Report 76-775
Flood-frequency curves may be defined either with or without an ' expeced probability ' adustment; and the two curves differ in the way that they attempt to average the time-sampling uncertainties. A curve with no adustment is shown to estimate a median value of both discharge and frequency of occurrence,...
Preliminary evaluation of the feasibility of artificial recharge in northern Qater
John Vecchioli
1976, Open-File Report 76-540
Fresh ground water in northern Qatar occurs as a lens in limestone and dolomite of Eocene age. Natural recharge from precipitation averages 17x106 cubic metres per year whereas current discharge averages 26.6x106 cubic metres per year. Depletion of storage is accompanied by a deterioration in quality due to encroachment of...