THE VALUE OF REGIONAL INFORMATION TO FLOOD FREQUENCY-ANALYSIS USING THE METHOD OF L-MOMENTS

被引:48
作者
PILON, PJ [1 ]
ADAMOWSKI, K [1 ]
机构
[1] UNIV OTTAWA,DEPT CIVIL ENGN,OTTAWA K1N 9B4,ONTARIO,CANADA
关键词
L-MOMENTS; SKEWNESS; REGIONAL FLOOD ANALYSIS; GENERALIZED EXTREME VALUE DISTRIBUTION; SIMULATION;
D O I
10.1139/l92-014
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The value of regional flood frequency analysis is investigated using the method of L-moments. This study shows that the variability of L-skewness in the province of Nova Scotia is due in large part to sampling error. This implies that a relation between the L-skewness and the basin's characteristics cannot be determined. This study demonstrates that flood data in Nova Scotia can best be described by the generalized extreme value (GEV) distribution. The results also indicate that the regional GEV model is more accurate than the single site analysis.
引用
收藏
页码:137 / 147
页数:11
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