广东省沿海地区年最高设计潮位计算与分析  

Calculation and analysis of annual design highest tidal level in coastal area of Guangdong

作　　者：贾良文[1] 任杰[1] 余丹亚 

机构地区：[1]中山大学近岸海洋科学与技术研究中心,广东广州510275 [2]广东省航道局,广东广州510115

出　　处：《水运工程》2012年第6期8-14,共7页Port & Waterway Engineering

基　　金：国家国际科技合作项目(2010DFA24470);广东省科技计划项目(2011B031100008);水利部公益性行业科研项目(200901034-01)

摘　　要：选取广东省沿海28个潮位站(或水位站)作为计算基本站,对基本站潮位资料进行了可靠性、一致性和代表性检验,资料系列均满足有关规范规定的要求。根据情况对各站潮位资料进行了极大值处理,对基本站按极值Ⅰ型和PⅢ型分布律进行了频率计算,通过适线对比选用适当的线型。广东省沿海年最高潮位均值变化趋势总体上呈自东向西增大的趋势,与潮差大小的变化趋势基本一致。广东省沿海Cv值的大小受风暴潮的影响较大,因此,沿海站位Cv值一般大于河口站位,多大于0.20。广东省沿海年最高设计潮位总体上呈东低西高的态势,以潮差最大,遭受风暴潮影响最多的粤西地区年最高设计潮位最高,以潮差较小的港口、汕尾站年最高设计潮位最低。Twenty-eight coastal tidal gauge stations are applied to calculate the annual design highest tidal level of coastal area of Guangdong province.The data of these stations are checked in credibility,coherence and typicality.The series of the data can meet the requirement of related standards.The extreme values of these stations are treated.Pearson type three distribution（P-Ⅲ） and extreme value type one distribution are employed to calculate the annual design highest tide level in coastal area of Guangdong province.The best distribution is selected through comparison of curve fitting.The average values of the annual highest tidal levels in Guangdong coast is increased from east to west,which is same with the change of tidal range.The Cv of coastal stations,more than 0.20 in general,is bigger that of estuarine stations because the Cv is affected greatly by storm surge.The annual design highest tidal level in east Guangdong coast is lower than that of west Guangdong coast.The highest occurs in the west Guangdong coast,where the tidal range is the biggest and the storm surge is more frequent,the lowest occurs in east Guangdong coast,where the tidal range is small,such as Gangkou and Shanwei stations.

关 键 词：广东 沿海 设计潮位 

分 类 号：TV14[水利工程—水力学及河流动力学]