Bulletin - Geological Survey of Alabama, Ausgabe 17

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Geological Survey of Alabama, 1916
 

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Seite 21 - Maximum" 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 assumed 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 17 - 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...
Seite 17 - 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" 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....
Seite 251 - ... they refused them, preferring to lie huddled close together for warmth. In the morning the woman would prepare breakfast for them, consisting of fish (mainly mullet), birds' and turtles' eggs, and sea-fowl ; to which would perhaps be added some little luxury from my own stock. They only had two meals a day — one in the morning and the other in the afternoon. Their favourite food was turtle, of which they could eat enormous quantities, especially the fat. Bruno was a long time before he took...
Seite 19 - States gallons equals 3.07 acre-feet. 1,000,000 cubic feet equals 22.95 acre-feet. 1 acre-foot equals 325,850 gallons. 1 inch deep on 1 square mile equals 2,323,200 cubic feet. 1 inch deep on 1 square mile equals 0.0737 second-foot per year. 1 foot equals 0.3048 meter. 1 mile equals 1.60935 kilometers.
Seite 19 - 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.
Seite 16 - This curve, under normal conditions, is concave toward the horizontal axis and is generally parabolic in form. In preparing the rating table the discharge for each tenth on the gage is taken from the curve, and the differences between successive discharges are then adjusted so as to give a smooth curve.
Seite 17 - 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 218 - Jan. Feb. Mar. Apr. May Juno July Aug. .Sept. Oct. Nov. Dec.
Seite 83 - ... rises in the northeastern part of Mississippi and enters Alabama in Pickens County. Its principal tributary is the Black Warrior, which is formed by the junction of Mulberry Fork and Sipsey Fork. Locust Fork enters the Black Warrior some distance below the junction. The mean annual rainfall is about 50 inches. Coosa and Tallapoosa rivers and their tributaries are important water-power streams, and offer many exceptionally good locations for development. The following gaging stations in Alabama,...

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