南海北部沙波运移的观测与理论分析
Observation and theoretical analysis for the sand-waves migration in the North Gulf of South China Sea
查看参考文献27篇
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文摘
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针对南海北部海域特点建立了模拟该区域小尺度沙波运移过程的准三维力学模型.以多波束海底地貌扫描数据和水文资料为基础,预测了研究区域沙波的运移,其结果在沙脊脊沟处与实际观测一致,而在脊背上与实际观测值存在差异.分析表明,本文所提出的物理模型可以用于预测南海海域以推移质泥沙运动为主的小尺度沙波运移规律.这一结果对该区域海底管线等工程设计是很有意义的. |
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其他语种文摘
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According to the environmental characteristic of the north gulf of South China Sea, a quasi-3D mechanics model has been built for simulating the small scale sand-waves migration in the seas of southwest of Hainan Island. Based on the submarine micro-geomorphic data induced by multi-beam system and hydrographic survey record, the migrations of the sand-waves in the study area are predicted. The results show that calculation is consistent with the observation data in the groove of sand ridge, but not well in the crest of sand ridge. It is indicated that the mechanics model should be used to predict the migration of the small scale sand-waves which are dominated by bed load in the seas. This paper is very meaningful to project the route of submarine pipeline. |
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来源
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地球物理学报
,2009,52(3):776-784 【核心库】
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关键词
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南海北部
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小尺度沙波
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准三维力学模型
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多波束海底地貌扫描
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地址
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1.
中国科学院力学研究所, 北京, 100190
2.
中国科学院海洋研究所, 山东, 青岛, 266071
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0001-5733 |
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学科
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海洋学 |
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基金
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国家自然科学基金
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国家863计划
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中国科学院知识创新工程重要方向项目
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文献收藏号
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CSCD:3751124
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27
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