| 杭州湾北岸张家厍潮滩动态系统的频谱分析 |
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| 引用本文： | 章可奇,金庆祥,王宝灿.杭州湾北岸张家厍潮滩动态系统的频谱分析[J].海洋与湖沼,1994,25(4):446-451. |
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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： | 华东师范大学河口海岸研究所!上海，200062，华东师范大学河口海岸研究所!上海，200062，华东师范大学河口海岸研究所!上海，200062 |
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| 基金项目： | 国家自然科学基金!49106060 |
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| 摘 要： | 应用ＡＲ谱和多维最大熵谱方法分析了杭州湾北岸张家厍潮滩的波浪，潮流及潮滩面高程数据。结果表明，潮滩的变动和潮流，波浪变化的关系十分密切，潮滩面高程具有３０，１５，２－５ｄ的周期变化；冬春季节潮滩变化以潮流作用造成的低频变化为主，夏秋季节则由低频向高频转移，波浪引起的潮滩高频变化也很显著；低潮滩到中潮滩下部的冲淤变化与潮流作用关系密切，中潮滩上部，高潮滩的冲淤变化对常浪性质的波浪作用具有明显的响应。
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| 关 键 词： | 潮滩 谱分析 杭州湾 频谱 波浪 |
| 收稿时间： | 1992/6/22 0:00:00 |
| 修稿时间： | 1993/6/23 0:00:00 |
SPECTRAL ANALYSIS OF THE DYNAMIC SYSTEM OF TIDAL FLAT AT ZHANGJIASHE ON THE NORTH BANK OF HANGZHOU BAY |
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| Zhang Keqi,Jin Qingxiang and Wang Baocan.SPECTRAL ANALYSIS OF THE DYNAMIC SYSTEM OF TIDAL FLAT AT ZHANGJIASHE ON THE NORTH BANK OF HANGZHOU BAY[J].Oceanologia Et Limnologia Sinica,1994,25(4):446-451. |
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| Authors: | Zhang Keqi Jin Qingxiang and Wang Baocan |
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| Institution: | 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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| Abstract: | A daily measured set of data on the one year elevation of the tidal flat, wave height and tidal current at Zhangjiashe of Hangzhou Bay was analysed by using au-toregressive and multichannel maximum enrropy spectrum techniques in order to ex-plore the features of tidal flat changes in the frequency domain. The results showed that the 30 and 15 day period tidal flat changes caused mainly by the monthly and spring-neap change of tidal currents, that there was a remarkble correlation between the changes of wave height and the less than 15 day period tidal flat variations,that during winter, tides dominated the changes of the tidal flat and during summer both waves and tides played important roles in variations of the tidal flat, that the changes of elevation in the lower part of the middle flat and the low tidal fIat re-lated closely to variations of tidal currents, and that the changes of elevation in the high tidal flat and the upper part of the middle tidal flat responded significantly to the variations of wave. |
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| Keywords: | Tidal flat Spectral analysis Hangzhou Bay |
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