| 厦门同安湾滩槽演变趋势的遥感分析 |
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| 引用本文： | 林桂兰,方建勇,陈峰.厦门同安湾滩槽演变趋势的遥感分析[J].国土资源遥感,2004,15(4):63-67. |
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| 作者姓名： | 林桂兰 方建勇 陈峰 |
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| 作者单位： | 国家海洋局第三海洋研究所,厦门,361005 |
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| 摘 要： | 利用多时相遥感图像判释厦门同安湾入海河流分布、海岸类型及浅海滩槽地貌,并根据海水表层流场特征和浑水带(悬浮泥沙)分布扩散特征及不同时期的海图,对同安湾泥沙供应现状和运移规律以及浅海滩槽冲淤变化、演变趋势进行了分析研究。结果表明,厦门同安湾海岸类型已由类型较齐全的天然海岸演变成单一的人工海岸,泥沙运移走向在平面上展示了逆时针泥沙水平环流特征,潮汐通道和局部海域出现了冲淤变化,部分潮滩处于缓慢淤积状态中。演变的动力因素主要是潮流,其次是径流,人工海岸形成后,陆源泥沙对海域基本不产生影响。
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| 关 键 词： | 浅海港湾 滩槽地貌 演变趋势 遥感分析 厦门同安湾 |
| 文章编号： | 1001-070(2004)04-0063-05 |
| 收稿时间： | 2004-05-14 |
| 修稿时间： | 2004年5月14日 |
A REMOTE SENSING ANALYSIS OF SHALLOW SEA TOPOGRAPHIC EVOLUTIONARY TREND OF TONG'AN BAY, IN XIAMEN |
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| LIN Gui-lan,FANG Jian-yong,CHEN Feng.A REMOTE SENSING ANALYSIS OF SHALLOW SEA TOPOGRAPHIC EVOLUTIONARY TREND OF TONG''AN BAY, IN XIAMEN[J].Remote Sensing for Land & Resources,2004,15(4):63-67. |
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| Authors: | LIN Gui-lan FANG Jian-yong CHEN Feng |
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| Institution: | No.3 Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China |
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| Abstract: | Based on investigating river distribution, coastal type and shallow sea topography from multi-temporal high-resolution satellite remote sensing images, distinguishing tidal current field forms and diffusing characteristics of suspended sediments from flood-tide time and ebb-tide time temporal images, and utilizing sea charts of different periods, this paper has analyzed the bed load and its movement regularity as well as scouring-silting trend of Tong'an bay in Xiamen. The results show that the natural shore of Tong'an bay has been mostly replaced by artificial coast, that the bed load movement trend of the bay is in anticlockwise circumfluent direction, and that the beach and tidal channels are undergoing slow scouring-silting evolution with the driving factors being mainly tidal current and subordinately runoff. Since the formation of the artificial coast, the terrigenous bed load has not exerted remarkably influence on the sea area. |
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| Keywords: | Shallow sea bay Topography and geomorphology Evolutionary trend Remote sensing analysing Tong'an bay in Xiamen |
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