Water-supply Paper, Bände 591-592U.S. Government Printing Office, 1928 |
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1922 discharge 1924 Date Gage ACCURACY.-Stage-discharge relation changed acre-feet Maximum Minimum affected by ice applying mean daily ascertained by applying August boulders Calif charge Date Gage charge Feet Sec.-ft Chiloquin có có có County curve well defined Daily discharge ascertained daily gage height Date Gage Dis Day Oct December Discharge in second-feet DISCHARGE MEASUREMENTS.-Made DISCHARGE.-Maximum stage recorded DIVERSIONS.-None DRAINAGE AREA.-Not measured ending September 30 EXTREMES OF DISCHARGE.-Maximum feet below gage GAGE.-Water-stage recorder height charge Date height charge Feet height to rating highway bridge ICE.-Stage-discharge relation January June July Aug Lake left bank LOCATION.-In Maximum Minimum Mean Maximum stage recorded mean daily gage MEASUREMENTS.-Made from cable Merced River minimum stage Monthly discharge November October Pit River rating table REGULATION.-None right bank Run-off in acre-feet San Joaquin River Santa Ana River Sept Southern California Edison Sprague River square miles square miles measured Tuolumne River wading Wash
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Seite 433 - 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...
Seite 2 - 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...
Seite 434 - 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 hoth as regards time and area. "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 inches.
Seite 4 - Maximum" gives the mean flow, for the day when the mean gage height was highest. As the gage height is the mean for the day it does not indicate correctly the stage when the water surface was at crest height and the corresponding discharge was consequently larger than given in the maximum column. Likewise in the column headed "Minimum" the quantity given is the mean flow for the day when the mean gage height was lowest. The column headed "Mean" is the average flow in cubic feet per second during...
Seite 440 - ACCURACY OF FIELD DATA AND COMPUTED RESULTS The accuracy of streamflow data depends primarily on (1) the stability of the stage-discharge relation or, if the control is unstable, the frequency of discharge measurements, 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.
Seite 2 - 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...
Seite 4 - In the table of monthly discharge the column headed "Maximum" gives the mean flow for the day when the mean gage height was highest. As the gage height is the mean for the day, it does not indicate correctly the stage when the water surface was at crest height and the corresponding discharge was consequently larger than given in the maximum column.
Seite 4 - The table of daily discharge gives, in general, the discharge in second-feet corresponding to the mean of the gage heights read each day. At stations on streams subject to sudden or rapid diurnal fluctuation, the discharge obtained from the rating table and the mean daily gage height may not be the true mean discharge for the day.
Seite 1 - For gaging the streams and determining the water supply of the United States, and for the Investigation of underground currents and artesian wells, and for the preparation of reports upon the best methods of utilizing the water resources.
Seite 312 - DISCHARGE MEASUREMENTS. — Made from downstream side of bridge or by wading. CHANNEL AND CONTROL.