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The Influence on Topography and Relief in South Gulf Beibu and Suspending of Pipe Caused by Typhoon
Author(s): 
Pages: 24-28,34
Year: Issue:  2
Journal: OCEAN TECHNOLOGY

Keyword:  旁扫声纳台风沙脊北部湾;
Abstract: 利用旁侧声纳和多波束在不同时间段内对琼西南近岸海域进行了探测,并对台风前后的旁侧声纳资料进行了对比和分析.研究表明,琼西南近岸海域主要存在沙脊区和沙波区两种地貌类型,其中,沙波波高在1~5.5 m,波长3~60 m,沙脊波高在6~20 m,波长2~4 km.在不同年份和台风期间,沙波和沙脊存在明显的活动性,对铺设于此的海底管线构成了严重的影响.台风对小沙波起夷平作用,对较大沙波、沙脊增高加宽,并且可以使海底出现冲刷沟槽和凹坑.
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