| Byung Ho Choi,Sang Jun Roh,Jae Hak Lee,Fang Guohong. 1999. An analysis on the mean sea level change of the seas adjacent to Korea. Acta Oceanologica Sinica, (3):337－353 |
| An analysis on the mean sea level change of the seas adjacent to Korea |
| An analysis on the mean sea level change of the seas adjacent to Korea |
| Received:April 10, 1998 Revised:September 15, 1998 |
| DOI： |
| Key words:Monthly mean sea level linear multiple regression |
| 中文关键词: Monthly mean sea level linear multiple regression |
| 基金项目: |
| Author Name | Affiliation | | Byung Ho Choi | Department of Civil Engineering, Sung Kyun Kwan University, Korea | | Sang Jun Roh | SKKU-KORDI Joint Program on Coastal, Ocean Engineering, Korea | | Jae Hak Lee | Korea Ocean Research, Development Institute, Ansan, Korea | | Fang Guohong | Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China |
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| Abstract: |
| Monthly changes of sea level recorded on the seas adjacent to Korea (the Huanghai Sea,the East China Sea and the East Sea) are investigated.The major in(fuences on the spatial and temporal variation of mean sea level are quantitatively identified.A set of modes of monthly air pressure variation over the Huanghai Sea,East China Sea and East Sea for the period of 1978-1992 is obtained.Each monthly air pressure distribution can be precisely defined by linear c+nbination of these modes.Hence,the set of air pressure series can be replaced by a set of time varying coefficiertts,where each coefficient describes the contribution of a particular mode to a given air pressure distribution.A selected set of the modal coefficients is then added to a multiple regression model,consisting of a trend,monthly wind stress and tidal termt,in an attempt to represent the effect of meteorological variations on monthly mean sea level on the seas adjacent to Korea.It is found that although the model may account for over 90% of the observed mean sea level variance,there still remains a high correlation between the residuals,hence identifying a regional variation for further study. |
| 中文摘要: |
| Monthly changes of sea level recorded on the seas adjacent to Korea (the Huanghai Sea,the East China Sea and the East Sea) are investigated.The major in(fuences on the spatial and temporal variation of mean sea level are quantitatively identified.A set of modes of monthly air pressure variation over the Huanghai Sea,East China Sea and East Sea for the period of 1978-1992 is obtained.Each monthly air pressure distribution can be precisely defined by linear c+nbination of these modes.Hence,the set of air pressure series can be replaced by a set of time varying coefficiertts,where each coefficient describes the contribution of a particular mode to a given air pressure distribution.A selected set of the modal coefficients is then added to a multiple regression model,consisting of a trend,monthly wind stress and tidal termt,in an attempt to represent the effect of meteorological variations on monthly mean sea level on the seas adjacent to Korea.It is found that although the model may account for over 90% of the observed mean sea level variance,there still remains a high correlation between the residuals,hence identifying a regional variation for further study. |
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