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首页> 外文期刊>International Journal of Naval Architecture and Ocean Engineering >Nearshore waves and longshore sediment transport along Rameshwaram Island off the east coast of India
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Nearshore waves and longshore sediment transport along Rameshwaram Island off the east coast of India

机译：印度东海岸拉梅什瓦拉姆岛附近的近岸海浪和近岸沉积物运输

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ABSTRACT Wave-induced Longshore Sediment Transport (LST) play an important role in the dynamics of the Dhanushkodi sandspit located southeast of Rameshwaram. The LST along the Dhanushkodi coast is studied based on data collected simultaneously in Gulf of Mannar (GoM) and Palk Bay (PB) using directional waverider buoys. The numerical model REF/DIF1 was used to calculate the nearshore waves and the LST rate was estimated using three different formulae. The model validation was done based on the measured nearshore waves using InterOcean S4DW. Numerical model LITPACK was also used for simulating non-cohesive sediment transport and the LITLINE module was used to study the shoreline evolution over 5 years. Low net annual LST along PB (~0.01 × 10 6 m 3 ) compared to the GoM region (0.3 × 10 6 m 3 ) were due to the weak waves. Accretion in the region led to growth of the Dhanushkodi sandspit by 65 m during the period 2010-2015.
机译：摘要波浪引起的近岸沉积物迁移（LST）在位于Rameshwaram东南的Dhanushkodi沙坑的动力学中起着重要作用。基于马纳尔湾（GoM）和帕克湾（PB）同时使用定向波状浮标浮标收集的数据，研究了Dhanushkodi海岸的LST。数值模型REF / DIF1用于计算近岸波浪，并使用三个不同的公式估算LST率。使用InterOcean S4DW根据测得的近岸波浪进行了模型验证。 LITPACK数值模型还用于模拟非粘性沉积物的输送，而LITLINE模块则用于研究5年内海岸线的演变。与GoM区域（0.3×10 6 m 3）相比，沿PB的年净LST较低（〜0.01×10 6 m 3）。该区域的积聚导致Dhanushkodi沙嘴在2010-2015年期间增长了65 m。

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