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《Geomatics and Information Science of Wuhan University》 2015-04
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Analysis on Sea Level Variability Along the Coast of Haiphong Vietnam

Van CHINH D;LI Jiancheng;BUI THI KIEN TRINH;School of Geodesy and Geomatics,Wuhan University;Le Quy Don Technical University;Department of Geo-informatics,Water Resources University;  
The sea level variabilites along the coast of Haiphong,Vietnam are analyzed by the 52 years of hourly observations on the HONDAU tide gague.The results show that the long-term trends of the relative mean sea level change and the mean tidal range change are 1.98 mm/a and 3.07 mm/a,respectively.The harmonic tidal constants of main tidal constituents are changing,and have large correlation with the events of El Nino and La Nina.The Residual Sea Level(RSL)is rising with the rate of1.76mm/a,the mean positive and negative RSL is 12.48 cm and-13.36 cm,respectively.The cumulative frequency of the duration of the positive RSL and negative RSL less than 24 his 95.5% and93.3%,repectively,and large than 48 his only about 1~2%.The absolute RSL less than 50 cm occupy about 99%,and the positive and negative absolute RSL large than 100 cm occupy about 0.1%.
【Fund】: 国家973计划资助项目(2003CB733301);; 国家自然科学基金资助项目(41210006 413740022)~~
【CateGory Index】: P731.23
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