南海北部相干内潮和非相干内潮演变特征

发布时间：2018-05-20 05:24

本文选题：南海北部 + 相干内潮　；参考：《海洋学报》2017年11期

【摘要】：通过南海北部跨越陆坡和陆架区的3套潜标数据,对全日和半日相干、非相干内潮的动能变化特征进行了研究。研究表明,全日内潮沿陆坡区向陆架区传播的过程中,在陆坡区主要以全日相干内潮生成为主,平均动能生成率为2.32J/(m~3·s);在陆架区以全日相干内潮耗散为主,平均动能耗散率为0.44J/(m~3·s)。全日非相干内潮动能在陆坡和陆架区均增长,平均动能生成率分别为0.39J/(m~3·s)和0.03J/(m~3·s)。全日与半日相干内潮动能在陆坡和陆架区的表现不同,陆坡区的全日相干内潮动能明显大于陆架区的全日相干内潮动能,而半日相干内潮动能在陆坡和陆架区没有明显差别;陆架区的全日和半日非相干内潮动能要大于陆坡区的全日和半日非相干内潮动能。
[Abstract]:Through 3 sets of submersible data across the continental slope and shelf area in the northern South China Sea, the kinetic energy change characteristics of all day and semidiurnal coherence and incoherent internal tide have been studied. The dissipation rate of average kinetic energy dissipation is 0.44J/ (m~3. S). The average kinetic energy of all day incoherent internal tidal kinetic energy increases in both continental slope and shelf area. The average kinetic energy generation rate is 0.39J/ (m~3. S) and 0.03J/ (m~3. S). All day and half day coherent internal tidal kinetic energy is different in continental slope and shelf area. All day coherence of land slope area The internal tidal kinetic energy is obviously larger than the all day coherent internal tidal kinetic energy in the continental shelf, while the half day coherent internal tidal kinetic energy has no obvious difference between the continental slope and the shelf area, and the all day and half day incoherent tidal kinetic energy of the continental shelf area is greater than the all day and half day incoherent incoherent internal tidal kinetic energy in the continental slope area.
【作者单位】：中国科学院南海海洋研究所热带海洋环境国家重点实验室;中国科学院大学;
【基金】：国家自然科学基金(41630970,41676022,41376022,41521005)
【分类号】：P731.23

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