- Author : Donald H. Burn
- Publisher :
- Release : 1992
- ISBN : 9780948540400
- Pages : 71 pages
Catchment Classification Applied to the Estimation of Hydrological Parameters at Ungauged Catchments
Download or read book Catchment Classification Applied to the Estimation of Hydrological Parameters at Ungauged Catchments written by Donald H. Burn and published by . This book was released on 1992 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Estimates of hydrological parameters at ungauged sites have traditionally been obtained from regression equations. This study investigates alternative methods based on the classification of catchments according to their flow regime, the assignment of ungauged catchments to a class based on physical characteristics of the catchment, and the use of similarity measures to transfer parameters from gauged to ungauged catchments. This report considers the methods that can be adopted in this type of approach, and the many variations that must be considered in their implementation. The methods are examined using a set of 99 catchments from the UK, and are seen to be efficacious in estimating the unit hydrograph time to peak and standard percentage runoff, as defined by the UK Flood Studies Report. A step-by-step guide and worked example show how the method can be applied in practice.