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Estimating Low-Flow Frequency Statistics and Hydrologic Analysis of Selected Streamflow-Gaging Stations, Nooksack River Basin, Northwestern Washington

Engels | Paperback | 9781244058156 | 90 pagina's

Alfred F Mancuso, Christopher A Curran - 9781244058156

 

Engels | Paperback | 9781244058156 | 90 pagina's

Low-flow frequency statistics were computed at 17 continuous-record streamflow-gaging stations and 8 miscellaneous measurement sites in and near the Nooksack River basin in northwestern Washington and Canada, including the 1, 3, 7, 15, 30, and 60 consecutive-day low flows with recurrence intervals of 2 and 10 years. Using these low-flow statistics, 12 regional regression equations were developed for estimating the same low-flow statistics at ungaged sites in the Nooksack River basin using a weighted-least-squares method. Adjusted R2 (coefficient of determination) values for the equations ranged from 0.79 to 0.93 and the root-mean-squared error (RMSE) expressed as a percentage ranged from 77 to 560 percent. Streamflow records from six gaging stations located in mountain-stream or lowland-stream subbasins of the Nooksack River basin were analyzed to determine if any of the gaging stations could be removed from the network without significant loss of information. Using methods of hydrograph comparison, daily-value correlation, variable space, and flow-duration ratios, and other factors relating to individual subbasins, the six gaging stations were prioritized from most to least important as follows: Skookum Creek (12209490), Anderson Creek (12210900), Warm Creek (12207750), Fishtrap Creek (12212050), Racehorse Creek (12206900), and Clearwater Creek (12207850). The optimum streamflow-gaging station network would contain all gaging stations except Clearwater Creek, and the minimum network would include Skookum Creek and Anderson Creek.

 

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Estimating Low-Flow Frequency Statistics and Hydrologic Analysis of Selected Streamflow-Gaging Stations, Nooksack River Basin, Northwestern Washington Engels | Paperback | 9781244058156 | 90 pagina's
TaalEngels
BindwijzePaperback
Verschijningsdatum2011-09-11
Aantal pagina's90 pagina's
IllustratiesNee
Auteur(s)Alfred F Mancuso | Christopher A Curran | Theresa D Olsen
UitgeverBibliogov
Extra groot lettertypeNee
Gewicht122 g
Oorspronkelijke releasedatum2011-09-11
Verpakking breedte189 mm
Verpakking hoogte3 mm
Verpakking lengte246 mm



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