《海洋预报》| 基于三维水动力海洋数值模型的莫桑比克海峡潮汐数值模拟

摘要：莫桑比克海峡是世界上最长的海峡，具有独特的潮波动力学特征。基于三维水动力海洋数值模型（FVCOM）模拟莫桑比克海峡的潮汐动力过程，通过设置不同底摩擦、海岭形态、岸线特征进行数值试验，对模型结果进行对比验证。结果表明：莫桑比克海峡及其邻近海区的潮波系统以半日分潮M2和S2为主，最大潮流能出现在莫桑比克海峡最窄处。对潮能通量影响最大的因素是莫桑比克海峡北部喇叭形岸线的束窄效应，海岭附近的地形深度和位置可小幅度调制潮能通量，而海底粗糙程度对潮能通量的影响几乎可以忽略。

关键词：莫桑比克海峡 潮汐数值模拟 FVCOM 潮能通量

Abstract：The Mozambique Channel is the longest channel in the world, with unique tidal wave dynamic characteristics. This study simulates the tidal dynamic processes in the Mozambique Channel using the FiniteVolume Community Ocean Model（FVCOM）. Numerical experiments are conducted with different drag coefficients, seamount morphologies, and coastline characteristics. The results show that the tidal wave system in the Mozambique Channel and its adjacent sea areas are dominated by the semi-diurnal tides M2 and S2, and the maximum tidal current energy occurs at the narrowest part of the Mozambique Channel. The narrowing effect of the horn-shaped coastline in the northern part of the channel has the greatest impact on the tidal energy flux. The depth and location of seamounts can modulate the tidal energy flux slightly, while the bottom friction has a negligible impact on the tidal energy flux.

Key words：Mozambique Channel; tidal numerical simulation; FVCOM; tidal energy flux

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