| Liu Kexiu,Majirui,Han Guijun,Fan Zhenhua,Xu Chongjin. 2002. Tidal harmonic analysis of TOPEX/POSEIDON data in the Northwest Pacific by introducing difference-ratio relations. Acta Oceanologica Sinica, (1):33－44 |
| Tidal harmonic analysis of TOPEX/POSEIDON data in the Northwest Pacific by introducing difference-ratio relations |
| Tidal harmonic analysis of TOPEX/POSEIDON data in the Northwest Pacific by introducing difference-ratio relations |
| Received:October 16, 2001 Revised:December 16, 2001 |
| DOI： |
| Key words:Tidal harmonic analysis TOPEX/POSEIDON the Northwest Pacific difference-ratio relations |
| 中文关键词: Tidal harmonic analysis TOPEX/POSEIDON the Northwest Pacific difference-ratio relations |
| 基金项目:This study was supported by the National Natural Science Foundation of China under contract No.40006001. |
| Author Name | Affiliation | | Liu Kexiu | National Marine Data and Information Service, Tianjin 300171, China | | Majirui | National Marine Data and Information Service, Tianjin 300171, China | | Han Guijun | National Marine Data and Information Service, Tianjin 300171, China | | Fan Zhenhua | National Marine Data and Information Service, Tianjin 300171, China | | Xu Chongjin | National Marine Data and Information Service, Tianjin 300171, China |
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| Abstract: |
| The difference-ratio relations are introduced to separate tidal constituents that are aliased due to the sampling interval and sampling span of the TOPEX/POSEIDON altimeter.It is found that some tidal constituents such as K1 and SSA,though aliased at along track points,are not aliased at crossover points Ixrausf the data at crossover points are double those at along track points.So the harmonic analysis method can be employed directly for the analysis of time series at crossover points.Then the difference-ratio relations from 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. |
| 中文摘要: |
| The difference-ratio relations are introduced to separate tidal constituents that are aliased due to the sampling interval and sampling span of the TOPEX/POSEIDON altimeter.It is found that some tidal constituents such as K1 and SSA,though aliased at along track points,are not aliased at crossover points Ixrausf the data at crossover points are double those at along track points.So the harmonic analysis method can be employed directly for the analysis of time series at crossover points.Then the difference-ratio relations from 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. |
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