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Estimating the Magnitude and Frequency of Floods<br>in Rural Basins of North Carolina - Revised<br>USGS Water-Resources Investigations Report 01-4207

This report describes the development, application, and evaluation of two methods for estimating the magnitude and frequency of floods at ungaged, unregulated, rural basins in North Carolina-( 1) the regional regression method and (2) the region-of-influence method. A comparison of these two methods, based on their predictive ability and ease of application, also is presented. In order to compare the two methods on an equal basis, each method was applied to the same available data. The regional regression and region-of-influence methods of estimation were applied to the current data base of 317 sites with at least 10 years of unregulated peak-flow record and evaluated.

By Benjamin F. Pope, Gary D. Tasker, and Jeanne C. Robbins. 2001. 44 pages.




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