| SEASONAL CHANGES OF THE TIDAL FLAT FROM JINHUIGANG TO CAOJING ALONG THE NORTH BANK OF HANGZHOU BAY |
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| 作者姓名： | 章可奇 金庆祥 王宝灿 |
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| 作者单位： | Institute of Estuarine and Coastal Research，East China Normal University，Shanghai 200062，Institute of Estuarine and Coastal Research，East China Normal University，Shanghai 200062，Institute of Estuarine and Coastal Research，East China Normal University，Shanghai 200062 |
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| 摘 要： | This paper deals with the seasonal changes of the tidal flat along the north bank of Hangzhou Bay. Analysis of a one year set of weekly measured tidal flat profiles from Jinhuigang to Caojing shows that the tidal flat on the north bank of Hangzhou Bay accretes during winter and erodes during summer. To identify the characteristic patterns of the tidal flat spatio-temporal variations, Empirical Orthogonal Function (EOF) is applied on the tidal flat profile data. The results show that most of the variations of the tidal flat profiles can be represented by three eigenfunctions corresponding to the three largest eigenvalues. The first eigenfunction represents the long-term variation of the tidal flat over a year, the second eigenfunction represents the seasonal changes of the tidal flat resulting from the seasonal variations in wave regime, the third eigenfunction indicates sediment exchanges between different parts of the tidal flat associated with the variations of sea level.
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| 收稿时间： | 25 June 1992 |
Seasonal changes of the tidal flat from Jinhuigang to Caojing along the north bank of Hangzhou Bay |
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| Zhang Keqi,Jin Qingxiang,Wang Baocan.SEASONAL CHANGES OF THE TIDAL FLAT FROM JINHUIGANG TO CAOJING ALONG THE NORTH BANK OF HANGZHOU BAY[J].Chinese Journal of Oceanology and Limnology,1993,11(4):321-332. |
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| Authors: | Zhang Keqi Jin Qingxiang Wang Baocan |
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| Institution: | (1) Institute of Estuarine and Coastal Research, East China Normal University, 200062 Shanghai |
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| Abstract: | This paper deals with the seasonal changes of the tidal flat along the north bank of Hangzhou Bay. Analysis of a one year set of weekly measured tidal flat profiles from Jinhuigang to Caojing shows that the tidal flat on the north bank of Hangzhou Bay accretes during winter and erodes during summer. To identify the characteristic patterns of the tidal flat spatio-temporal variations, Empirical Orthogonal Function (EOF) is applied on the tidal flat profile data. The results show that most of the variations of the tidal flat profiles can be represented by three eigenfunctions corresponding to the three largest eigenvalues. The first eigenfunction represents the long-term variation of the tidal flat over a year, the second eigenfunction represents the seasonal changes of the tidal flat resulting from the seasonal variations in wave regime, the third eigenfunction indicates sediment exchanges between different parts of the tidal flat associated with the variations of sea level. |
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| Keywords: | seasonal changes tidal flat profile EOF analysis Hangzhou Bay |
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