Water-supply Paper, Volumes 313-314

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U.S. Government Printing Office, 1913 - Irrigation

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Page 43 - DEFINITION OF TERMS. The volume of water flowing in a stream — the "run-off" or "discharge"— is expressed in various terms, each of which has become associated with a certain class of work. These terms may be divided into two groups: (1) Those which represent a rate of flow, as secondfeet, gallons per minute, miner's inches, and...
Page 26 - ... and knowledge of local conditions. .In this column, A indicates that the mean monthly flow is probably accurate within 5 per cent; B, within 10 per cent; C, within 15 per cent; D, within 25 per cent.
Page 44 - The following is a list of convenient equivalents for use in hydraulic computations: 1 second-foot equals 40 California miner's inches (law of March 23, 1901). 1 second-foot equals 38.4 Colorado miner's inches. 1 second-foot equals 40 Arizona miner's inches. 1 second-foot equals 7.48 United States gallons per second; equals 448.8 gallons per minute; equals 646,272 gallons for one day.
Page 16 - States," published by the United States Geological Survey, the...
Page 9 - Reconnaissances in the Cape Nome and Norton Bay regions, Alaska, in 1900,
Page 43 - Second-feet per square mile" is the average number of cubic feet of water flowing per second from each square mile of area drained, on the assumption that the run-off is distributed uniformly both as regards time and area.
Page 44 - The standard miner's inch of water shall be equivalent or equal to 1 J cubic feet of water per minute, measured through any aperture or orifice.
Page 44 - Colorado miner's inches for one day equals 5.17 acre-feet. 100 United States gallons per minute equals 0.223 second-foot. 100 United States gallons per minute for one day equals 0.442 acre-foot. 1,000,000 United States gallons per day equals 1.55 second-feet.
Page 44 - States gallons per second; equals 448.8 gallons per minute ; equals 646,317 gallons for one day. 1 second-foot for one year covers 1 square mile 1.131 feet or 13.572 inches deep. 1 second-foot for one year equals 31,536,000 cubic feet. 1 second-foot equals about 1 acre-inch per hour. 1 second-foot for one day equals 86,400 cubic feet.
Page 44 - ... 1 acre equals 43,560 square feet. 1 acre equals 209 feet square, nearly. 1 square mile equals 2.59 square kilometers. 1 cubic foot equals 0.0283 cubic meter. 1 cubic foot equals 7.48 gallons.

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