標題: Identification and stochastic generation of representative rainfall temporal patterns in Hong Kong territory
作者: Wu, SJ
Yang, JC
Tung, YK
土木工程學系
Department of Civil Engineering
關鍵字: rainfall pattern;cluster analysis;Johnson distribution system;contingency table;constrained Monte-Carlo simulation
公開日期: 1-Apr-2006
摘要: In hydrosystem engineering design and analysis, temporal pattern for rainfall events of interest is often required. In this paper, statistical cluster analysis of dimensionless rainfall pattern is applied to identify representative temporal rainfall patterns typically occurred in Hong Kong Territory. For purpose of selecting an appropriate rainfall pattern in engineering applications, factors affecting the occurrence of different rainfall patterns are examined by statistical contingency tables analysis through which the inter-dependence of the occurrence frequency of rainfall patterns with respect to geographical location, rainfall duration and depth, and seasonality is investigated. Furthermore, due to inherent variability of rainfall mass curves or hyetographs within each classified rainfall pattern, a practical procedure to probabilistically generate plausible rainfall patterns is described. The procedure preserves the inherent stochastic features of random dimensionless rainfall hyetograph ordinates, which in general are correlated non-normal multivariate compositional variables.
URI: http://dx.doi.org/10.1007/s00477-005-0245-5
http://hdl.handle.net/11536/12431
ISSN: 1436-3240
DOI: 10.1007/s00477-005-0245-5
期刊: STOCHASTIC ENVIRONMENTAL RESEARCH AND RISK ASSESSMENT
Volume: 20
Issue: 3
起始頁: 171
結束頁: 183
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