Water-supply Paper, Volumes 521-524U.S. Government Printing Office, 1924 - Irrigation |
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Common terms and phrases
ACCURACY.-Stage-discharge relation permanent affected by ice applying mean daily April ascertained by applying charge Cheoah River County Creek curve well defined Daily discharge ascertained daily gage height Date datum December Discharge in second-feet Discharge measurements DISCHARGE MEASUREMENTS.-Made DISCHARGE.-Maximum stage recorded downstream side Drainage area ending Sept EXTREMES OF DISCHARGE.-Maximum fairly well defined feet below gage French Broad River Gage read gravel height to rating Holston River hundredths twice daily July June L. J. Hall left bank Little Tennessee River LOCATION.-At Maximum stage recorded mean daily gage measured on topographic Miami Conservancy District minimum stage Monthly discharge Nantahala River Nolichucky River November October p. m. March p. m. September probably permanent rating table read to hundredths relation practically permanent right bank Run-off in inches Sec.-ft September 30 Shenango River side of bridge square miles measured station subject to overflow Tenn Tuckasegee River water-stage recorder
Popular passages
Page 58 - 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 that represent a rate of flow, as secondfeet...
Page 300 - 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. "Run-off in inches...
Page 277 - Provided, That this officer shall have the direction of the Geological Survey, and the classification of the public lands and examination of the Geological Structure, mineral resources and products of the national domain...
Page 82 - LOCATION. — 3 miles downstream from Richford, Franklin County, 3 miles below mouth of North Branch, and 2 miles above mouth of Trout River. DRAINAGE AREA. — 445 square miles. RECORDS AVAILABLE.— May 22, 1909, to December 3, 1910, and June 26, 1911, to September 30, 1921.
Page 58 - Stage-discharge relation," an abbreviation for the term " relation of gage height to discharge." " Control," a term used to designate the section or sections of the stream below the gage which determines the stage-discharge relation at the gage. It should be noted that the control may not be the same section or sections at all stages. The
Page 129 - January 3 to 17, 1910. Regulation. — At ordinary stages the discharge is completely regulated by the operation of the sluice gates. Water is held in storage until needed to supplement the flow of the upper Hudson during the low-water period.
Page 278 - Run-off in inches" is the depth to which an area would be covered if all the water flowing from it in a given period were uniformly distributed on the surface. It is used for comparing run-off with rainfall, which is usually expressed in depth in inches. An "acre-foot," equivalent to 43,560 cubic feet, is the quantity required to •cover an acre to the depth of 1 foot.
Page 278 - Cubic feet per second per square mile (cfsm) is the average number of cubic feet of water flowing per second from each square mile of area drained, assuming that the runoff is distributed uniformly in time and area. Runoff in inches...
Page 148 - Discharge Measurements. — Made from downstream side of bridge or by wading. Channel and Control.