Water Supply of St. Mary and Milk Rivers, 1898-1917U.S. Government Printing Office, 1920 - 590 Seiten |
Häufige Begriffe und Wortgruppen
ACCURACY.-Stage-discharge relation affected by ice Alberta Railway Alta April August Average run-off B. E. Jones Babb Battle Creek Cardston CHANNEL AND CONTROL.-Bed charge Coulee Daily discharge Date December Depth in inches discharge estimated Discharge in second-feet Discharge measurements DISCHARGE MEASUREMENTS.-Made ditch drainage basin Eastend feet flow Fork of Milk fourth meridian Frenchman River Gage read GAGE.-Vertical staff H. W. Rowley international boundary J. E. Degnan July 12 July 20 June June 12 June 20 June 9 Kimball L. J. Gleeson LOCATION.-In March Mary canal Mary River Maximum stage recorded Mean monthly discharge Milk River minimum stage Mont N. M. Sutherland November October period Railway & Irrigation ranch S. H. Frame Sask Sec.-ft Sept September Spring Coulee square mile Stage-discharge relation affected station Swiftcurrent Creek Total in acre-feet V. A. Newhall W. A. Burton W. A. Lamb W. B. Freeman
Beliebte Passagen
Seite 8 - 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 (depth in inches...
Seite 8 - 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 9 - ... 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 for each second during the month.
Seite 8 - Run-off In Inches" Is the depth to which an area would be covered If all the water draining from It In a given period were uniformly distributed on Its surface.
Seite 12 - ... be drawn among them in such a way as to represent average conditions. For permanent conditions of control combined with a good measuring section the variations of individual measurements from the mean curve should be comparatively small and as likely to be plus as minus. The probable error of a rating curve may be computed by the method of least squares and will be a factor in determining the probable error of the estimates of daily discharge. Errors in determinations of daily discharge resulting...
Seite 140 - ... miles. From its final crossing the Milk River flows in a general direction 60 miles southeasterly to Havre, in Montana; thence flowing easterly, bearing gradually toward the south, 185 miles to its confluence with the Missouri River, at a point nearly 70 miles due south of the international boundary. Milk River in Montana is fed by numerous tributaries from both north and south. Of the five tributaries rising in Canada — Frenchman River, Battle Creek, Lodge Creek, Rock Creek and Whitewater...
Seite 410 - Discharge In second-feet. Run-off. Month. Maximum. Minimum. Mean. Per square mile. Depth In inches on drainage area.
Seite 11 - ... reconnaisance for the site and continue through the selection, establishment, maintenance, and operation of the station, the computation and interpretation of the data, and the preparation of the records for publication. In other words, records should be collected with the desired degree of accuracy in view instead of leaving it to be determined after the field data are collected and estimates have been made. In this discussion of accuracy it has been assumed that personal or instrumental errors,...
Seite 31 - Maximum. Minimum. Mean. Per square mile. Depth in inches on drainage area. Total In acre-feet.
Seite 11 - ... (3) refinement of gage readings, (4) frequency of gage readings, and (5) methods of applying daily gage heights to the rating table to obtain the daily discharge. 1 For the rating tables "well defined...