越南沿海若干验潮站长期观测资料的潮汐分析  

Tidal Analysis of Long-term Observation Data of Tide Gauges Along Vietnam Coast

作　　者：李大炜[1] 李建成[1] 团文征 

机构地区：[1]武汉大学测绘学院,湖北武汉430079 [2]黎贵敦技术大学,越南河内100803

出　　处：《海洋测绘》2017年第3期29-31,52,共4页Hydrographic Surveying and Charting

基　　金：国家自然科学基金(41404028);公益性行业科研专项(201512001);国家重点研发计划项目(2016YFB0501702)

摘　　要：为掌握越南沿海潮汐分布特征和变化规律,利用越南沿海HONDAU、HONNGU、DANANG、QUYNHON、VUNGTAU和RACHGIA共6个验潮站长期观测资料进行了调和分析,计算了主要分潮O1、P1、K1、Q1、M2、S2、N2、K2以及交点分潮Mn等长周期分潮的调和常数。计算结果表明,越南沿海地区潮汐特征复杂,极易受季节性海平面变化的影响。分析得到的18.61年交点分潮Mn空间分布不均匀,且明显高于其理论平衡潮振幅,可能与非潮汐低频海平面变化有关。In order to better understand the tidal characteristics and changes along the coast of Vietnam,the harmonic tidal analysis of the long-term observation data at six tide gauge sites of HONDAU,HONNGU,DANANG,QUYNHON,VUNGTAU and RACHGIA is performed to calculate the harmonic constants of the main principle constituents of O_1、P_1、K_1、Q_1、M_2、S_2、N_2、K_2 and long period tides,such as nodal tide Mn. The results show that the characteristics of the tide along co stline of Vietnam are com plex,and the coastal zone is more vulnerable at the time when the seasonal sealevel is at its hig hest. The observed amplitudes of the 18. 6-year nodal tide Mnalong Vietnam coast are uneven in spatial distribution,and sig nificantlyexceed the theoretical amplitudes,by less than 1 cm,which is relative to the changes of the non-tidal low-frequency sea level.

关 键 词：越南沿海 潮汐 验潮站 调和分析 长期观测资料 长周期分潮 

分 类 号：P229[天文地球—大地测量学与测量工程]