Extraction of M2 internal tide near Hawaii using 10 years TOPEX/Poseidon altimeter data
Harmonic analysis of 10 years of TOPEX/Poseidon (TP) alongtrack altimetry is performed to derive the semidiurnal and diurnal tides (M2S2N2K2,K1O1P1andQ1) near Hawaii. And there is a good agreement between the tide harmonic constants derived from the T/P altimeter data and that derived from the tide model of Oregon State University. Based on these reliable harmonics, the method of polynomial fitting, however two strategies, is used to extract the internal tide sea surface signals. One is to fit the values 1 Q A (amplitude) and (phaselag) respectively; the other is to fit the G AcosG and AsinG respectively. The comparison between these two strategies shows the latter one is better and the results of eleven order polynomial fitting are the best, which can completely separate the barotropic and baroclinic components. With this method, a good internal tide sea surface distribution also can be given near Hawaii.
TOPEX/Poseidonaltimetry Hawaii 2M Internaltide Polynomial fitting
Bin Wang Xianqing Lv Wei Zhao
Laboratory of Physical Oceanography Ocean University of China Qingdao, China Laboratory of Physical OceanographyOcean University of ChinaQingdao, China
国际会议
广州
英文
1-4
2011-05-13（万方平台首次上网日期，不代表论文的发表时间）