| Extraction of Intemal Tidal Currents from A Portion of Sea Current Profile |
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| 作者姓名： | 韩春明 潘增弟 范典 |
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| 作者单位： | LARSIS，Institute of Remote Sensing Applications，Chinese Academy of Sciences，First Institute of Oceanography，State Oceanic Administration，LARSIS，Institute of Remote Sensing Applications Beijing 100101，China ~bFirst Institute of Oceanography，State Oceanic Administration，Qingdao 266061，China，Qingdao 266061，China，Chinese Academy of Sciences，Beijing 100101，China |
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| 摘 要： | Internal tide is one of the major oceanic phenomena. Determination of internal tide is important for theoretical study and for ocean engineering research. As an inverse problem, extraction of internal tidal currenls from sea currents is diffi-cult. In this paper, a method is developed to extract internal tidal currents from a portion of the sea current profile based on the fact that the directions of internal tidal currents above and below the thermocline are inverse. Sea current data col-lected from the South China Sea is processed with this method. The internal tidal currents and the depth of the thermocline are successfully extracted. The depth of the thermocline determined is in good agreement with that measured in 1959.
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Extraction of Intemal Tidal Currents from A Portion of Sea Current Profile |
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| HAN Chunming,PAN Zengdi and FAN Dian
LARSIS.Extraction of Intemal Tidal Currents from A Portion of Sea Current Profile[J].China Ocean Engineering,2002(2). |
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| Authors: | HAN Chunming PAN Zengdi and FAN Dian
LARSIS |
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| Institution: | HAN Chunming,PAN Zengdi and FAN Dian
LARSIS,Institute of Remote Sensing Applications,Chinese Academy of Sciences,Beijing 100101,China, First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China |
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| Abstract: | Internal tide is one of the major oceanic phenomena. Determination of internal tide is important for theoretical study and for ocean engineering research. As an inverse problem, extraction of internal tidal currenls from sea currents is diffi-cult. In this paper, a method is developed to extract internal tidal currents from a portion of the sea current profile based on the fact that the directions of internal tidal currents above and below the thermocline are inverse. Sea current data col-lected from the South China Sea is processed with this method. The internal tidal currents and the depth of the thermocline are successfully extracted. The depth of the thermocline determined is in good agreement with that measured in 1959. |
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| Keywords: | sea current internal tidal current thermodine |
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