Premium
Regional flood frequency estimation and network design
Author(s) -
Greis Noel P.,
Wood Eric F.
Publication year - 1981
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr017i004p01167
Subject(s) - quantile , estimation , moment (physics) , flood myth , l moment , statistics , mathematics , computer science , geography , order statistic , engineering , physics , systems engineering , archaeology , classical mechanics
The use of probability weighted moments has been investigated for improving estimates of flood recurrence quantile events in both gauged and ungauged basins. Regional estimates at gauged sites are improved over more conventional methods such as method of moments and maximum likelihood estimation. An improved method for ungauged basins is proposed which incorporates both probability weighted moment techniques with more traditional mean peak flow estimation. The question of network design in terms of number of sites and number of years of record is reexamined in light of the probability weighted moment techniques.