摘要
为了获得暴雨选样年最大值法与年多个样法之间的频率转换关系,基于降雨资料系列的水文特性,根据雨强相等的原则,推导出采用指数分布适线时的暴雨选样方法之间的频率转换关系,并探讨降雨历时与年均选样个数对转换关系的影响;基于年最大值法与超定量法的Ghahraman-Khalili转换关系,提出年最大值法与年多个样法之间的非线性多参数转换关系,并结合雨量站统计参数特性,推导出参数经验公式,以充分体现水文特性的地区性.利用位于不同水文区域的温州西山站和兰溪水文站的降雨资料系列,与Chow式和Ghahraman-Khalili式进行对比,验证了提出的转换关系的可行性.
In order to achieve a valid relationship between the probabilities of annual maximum series （AMS） and annual multi-peak series（AMPS） for urban rainstorm, a statistical probability relationship suiting for exponential distribution was developed based on the hydrological characters of rainfall series and the equality of rainfall intensity, the effect of rainfall duration and the average number of rainfall peaks per year on the relationship were discussed. Besides, a non-linear multi-parameter relationship between the probabilities of AMS and AMPS was proposed based on Ghahraman-Khalili relationship of AMS and partial duration series（PDS）. Its coefficient estimates were established by considering the statistical parameter characters in each individual rainfall gauge station, which makes sure the relationship of AMS and AMPS can indicate the geographic characters in each individual hydrological region, Those two relationships were evaluated by the AMS series and AMPS series extracted from two gauge stations （Wenzhou station and Lanxi station） located in different hydrological regions and compared with Chow relationship and Ghahraman-Khalili relationship. The results show that the proposed relationships can practically indicate the inter-connection of the event probabilities between AMS and AMPS.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2010年第8期1597-1603,共7页
Journal of Zhejiang University：Engineering Science
基金
浙江省科技攻关计划资助项目(2005C23074)
