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引入差比关系法分析西北太平洋TOPEX/POSEIDON卫星高度计测高数据
引用本文:刘克修,马继瑞,韩桂军,范振华,许崇金.引入差比关系法分析西北太平洋TOPEX/POSEIDON卫星高度计测高数据[J].海洋学报,2002,24(4):1-10.
作者姓名:刘克修  马继瑞  韩桂军  范振华  许崇金
作者单位:国家海洋信息中心, 天津, 300171
基金项目:国家“九五”攀登项目“现代地壳运动和地球动力学研究”(C95 - 0 4 - 0 5 ),国家自然科学基金资助项目(40 0 0 6 0 0 1)
摘    要:TOPEX/POSEIDON(T/P)卫星高度计数据信息中存在周期成分混淆问题.对其中的一类混淆引入差比关系方法对混淆的分潮进行分离.卫星轨道交叉点资料包括升轨和降轨资料,资料量比沿轨点资料多1倍,经分析发现:在已有为期6a多的观测资料时间序列中,在沿轨处混淆的分潮如K1和SSA在交叉点处不再混淆,可以直接分离.因此首先对交叉点资料进行调和分析.然后由交叉点的分析结果得到分潮间的差比关系,处理到相近的沿轨点处,从而得到沿轨点的调和常数.用引入差比关系方法,对西北太平洋海区6a多的T/P卫星高度计资料进行了潮汐分析,并与沿岸及岛屿验潮站资料进行了比较,所得结果较满意.

关 键 词:调和分析    TOPEX/POSEIDON    西北太平洋    差比关系
文章编号:0253-4193(2002)04-0001-10
收稿时间:3/6/2001 12:00:00 AM
修稿时间:2001/6/17 0:00:00

Tidal harmonic analysis of TOPEX/POSEIDON data in Northwest Pacific by introducing difference-ratio relations
LIU Ke-xiu,MA Ji-rui,HAN Gui-jun,FAN Zhen-hua and XU Chong-jin.Tidal harmonic analysis of TOPEX/POSEIDON data in Northwest Pacific by introducing difference-ratio relations[J].Acta Oceanologica Sinica (in Chinese),2002,24(4):1-10.
Authors:LIU Ke-xiu  MA Ji-rui  HAN Gui-jun  FAN Zhen-hua and XU Chong-jin
Affiliation:National Marine Data and Information Service, Tianjin 300171, China
Abstract:The difference ratio relations are introduced to separate tidal constituents that are aliased due to the sample interval of the TOPEX/POSEIDON altimeter. It is found that some tidal constituents such as K 1 and SSA, though aliased at along track points, are not aliased at crossover points because there is one time more data at crossover points than that at along track points. So the harmonic analysis method can be employed directly on time series at the crossover points. Then the difference ratio relations from the crossover points are introduced to analyze the time series at along track points. The TOPEX/POSEIDON data in the Northwest Pacific are analyzed with this method. The results from this method agree well with tidal constants from tidal gauges.
Keywords:tidal harmonic analysis  TOPEX/POSEIDON  Northwest Pacific  difference  ratio relations
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