摘要
给出了提取潮汐调和常数的一种新方法———正交方法 ,并应用 1992～ 1997年的TOPEX/POSEIDON卫星高度计遥感资料 ,提取中国海M2 分潮调和常数。同时 ,利用最小二乘法来提取中国海M2 分潮调和常数 ,两种方法结果比较 :渤海、黄海、东海海域M2分潮振幅、迟角的均方差分别是 3 .3cm ,3 .6° ;南中国海海域M2 分潮振幅、迟角均方差分别是 1.1cm ,1.7° ,结果表明正交方法是一种可信的具有实用性的方法。
A new method of orthogonal analysis to extract the harmonic constants of tidal components is given in this study.The harmonic constant of M 2 is extracted from the TOPEX/POSEIDON altimetry data from1992through1997by using both the new method and least square method,respectively.The results are as follows.The RMS of amplitude and phase lag of M 2 is3.3cm and3.6°respectively for the areas of Bohai,Yellow Sea,and East China Sea(BYECS).The RMS of amplitude and phase lag of M 2 is1.1cm and1.7°respectively for the area of South China Sea.So the proposed new method of orthogonal analysis is confirmed to be a reliable and practical one to extract the harmonic constants of tidal component.
出处
《海洋科学》
CAS
CSCD
北大核心
2003年第9期49-53,共5页
Marine Sciences
基金
国家 8 63计划项目 863 81 8 0 6 0 5
