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Flood frequency analysis with a generalized skew coefficient
Author(s) -
Tasker Gary D.
Publication year - 1978
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/wr014i002p00373
Subject(s) - skew , skewness , statistics , skew normal distribution , mathematics , flood myth , monte carlo method , population , sample (material) , environmental science , econometrics , hydrology (agriculture) , geography , geology , computer science , physics , geotechnical engineering , demography , telecommunications , archaeology , sociology , thermodynamics
The Hydrology Committee of the Water Resources Council (1976) has recently issued guidelines for flood frequency analyses. One aspect of these guidelines concerns the estimate of skewness. Monte Carlo experiments are used to gain some insights into sensitivity of estimates of peak flows to errors in mapped skew coefficients. The optimum factor by which to weight a sample skew coefficient and a generalized skew coefficient is a function of sample size, population skew coefficient, and map error.