Geological Survey Water-supply Paper

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U.S. Government Printing Office, 1950 - Irrigation
 

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Page 2 - from each square mile of area drained, assuming that the runoff Is distributed uniformly In time and area. Runoff In Inches Is the depth to which an area would be covered If all the water drainIng from It In a given period were uniformly distributed on
Page 2 - data, as used In this report, are defined as follows: Cubic foot per second (cfs) Is the rate of discharge of a stream whose channel la 1 square foot In cross-sectional area and whose average velocity Is 1 foot per second. Cubic feet per second per square mile (cfsm) Is the average number of cubic feet
Page 3 - from precipitation normally would drain by gravity Into the river above the specified point. Figures of drainage area given herein Include all closed basins, or noncontrlbutlng areas, within the area unless otherwise noted. WSP Is used as an abbreviation for "Water-Supply Paper" In references to previously published reports. DOWNSTREAM ORDER OF LISTING
Page 2 - surface. The term Is used for comparing runoff with rainfall, which Is also usually expressed In Inches. Acre-foot Is the quantity of water required to cover an acre to the depth of 1 foot and Is equivalent to 43,560 cubic feet. The term Is commonly used In relation to storage for Irrigation.
Page 17 - and (2) the accuracy of observations of stage, measurements of discharge, and Interpretation of records. The station description states the degree of accuracy of the records. "Excellent" indicates that, in general, the error In the daily records is believed to be less than S percent; "good," less than 10 percent; "fair," less than 15 percent; and "poor,
Page 12 - computed on the basis of a level pool and does not Include bank storage. The drainage area of a stream at a specified location Is that area, measured In a horizontal plane, which is so enclosed by a topographic divide that direct surface runoff
Page 12 - for comparing runoff with rainfall, which is also usually expressed in Inches. Acre-foot is the quantity of water required to cover an acre to the depth of 1 foot and is equivalent to 43,560 cubic feet. The term is commonly used In relation to
Page 7 - (2) the accuracy of observations of stage, measurements of discharge, and Interpretation of records. The station description states the degree of accuracy of the records. "Excellent" Indicates that, In general, the error in the dally records Is believed to be less than 5
Page 7 - areas, or If the average annual rainfall over the drainage basin Is usually less than 20 Inches. In the yearly summary below the monthly summary, the values of maximum are the maximum dally discharges, not the momentary discharges when the water was at crest stage. Likewise, the
Page 15 - and history of gages, average discharge, extremes of discharge, general remarks, and notations of revisions of the previously published record. The location of the gaging station and the drainage area are obtained from the most accurate maps available. River

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