Report of the Railroad Commission of Wisconsin to the Legislature on Water Powers: Made Pursuant to Chapter 755 of the Laws of 1913Railroad Commission of Wisconsin, 1915 - 554 Seiten |
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12 miles 9 miles affected by ice Amendment Chap April May June August Black River Buffalo County Chippewa River Creek tributary Croix River Daily discharge Daily gage height Day Oct December depth in inches Discharge in second-feet Discharge measurements discharges into Green discharges into Mississippi Drainage area Dunn County Eau Claire River ending Sept exceed Facilitate Log Driv February Feet Sec.-feet flows north flows south flows southwest Fox River G. H. Canfield Grant County Grantee Duration Purpose Green Bay H. C. Beckman highway bridge January June July Aug Kickapoo River L. R. Stockman Laws Log Driving March April Maximum Minimum Mean miles into Lake miles into Wisconsin Mill Dam Act Milwaukee Mississippi River Monthly discharge Pecatonica River Polk County rises in Grant River which discharges Rock River Run-off depth southeast square miles tributary to Mississippi tributary to Wisconsin Vernon County Wisconsin River Wolf River
Beliebte Passagen
Seite 235 - 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...
Seite 235 - They may be defined as follows: "Second-feet" is an abbreviation for "cubic feet per second." A second-foot is the rate of discharge of water flowing in a channel of rectangular cross section 1 foot wide and 1 foot deep at an average velocity of 1 foot per second.
Seite 242 - 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...
Seite 235 - Run-off" (depth in inches) is the depth to which the drainage area would be covered if all the water flowing from it in a given period were conserved and 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...
Seite 242 - 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. Special conditions are covered by foot-notes. Even though the monthly means for any station may represent with a high degree of accuracy the quantity of water flowing past the gage, the figures showing discharge per square mile and depth of run-off in inches may be subject to...
Seite 236 - CONVENIENT EQUIVALENTS. The following is a list of convenient equivalents for use in hydraulic computations : Table for converting discharge in second-feet per square mile into run-off in depth in inches over the area. NOTE. — For part of a month multiply the run-off for 1 day by the number of days.
Seite 241 - gives the mean flow, as determined from the rating table, 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...
Seite 235 - 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 discharge in second-feet per square mile; and (2) those which represent the actual quantity of water, as run-off in depth in inches and acre-feet.
Seite 241 - ... known and applied. Attention is called to the fact that the zero of the gage is placed at an arbitrary datum and has no relation to zero flow or the bottom of the river. In general, the zero is located somewhat below the lowest known flow, so that negative readings shall not occur.
Seite 237 - British imperial gallons per second. 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 covers 1 square mile 0.03719 inch deep.