An appraisal of the “region of influence” approach to flood frequency analysis
作者:
DONALDH. BURN,
期刊:
Hydrological Sciences Journal
(Taylor Available online 1990)
卷期:
Volume 35,
issue 2
页码: 149-165
ISSN:0262-6667
年代: 1990
DOI:10.1080/02626669009492415
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Regional flood frequency entails the pooling of data from sites within a defined region to enhance the estimation of at-site quantiles. Conventional regionalization techniques normally identify a fixed set of stations forming a contiguous region. An approach to regional flood frequency analysis that involves each site having a potentially different set of stations included for the at-site estimation of extremes was compared with a more traditional regionalization technique. The characteristics of the stations identified as being of relevance for the purposes of at-site estimation using the two approaches were contrasted and also the extreme flow values obtained were compared. The results indicated that the region of influence approach results in a group of stations with greater homogeneity than was the case for the regionalization technique and also leads to extreme flow estimates which are more accurate.
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