欢迎访问《渔业研究》官方网站,今天是 分享到:

›› 2017, Vol. 39 ›› Issue (5): 331-341.

• 论文与报告 •    下一篇

三沙湾余环流特征数值模拟研究

林建伟,游远新,刘国昕   

  1. 福建省水产研究所
  • 收稿日期:2017-07-19 修回日期:2017-07-09 出版日期:2017-10-25 发布日期:2017-11-02
  • 通讯作者: 游远新
  • 基金资助:
    省属公益类科研院所基本科研专项

Numerical study of the tidal residual currents in Sansha Bay

  • Received:2017-07-19 Revised:2017-07-09 Online:2017-10-25 Published:2017-11-02
  • Supported by:
    Fund for Non-Profit research institutes with basic research Sector from Science and Technology Department of Fujian Province

摘要: 本文基于ROMS模型,同时考虑温度、盐度和流场以及海表的净热通量、水气通量、动量通量和地表径流,建立三沙湾精细化水动力数值模型,结合实测水文资料,对基于ROMS的三沙湾水动力模型进行验证,并研究了三沙湾的潮(余)流场分布特征,对潮(余)流场的空间分布进行了描述分析。结果表明:本文建立的三沙湾水动力模型能够较好地反演了三沙湾海域的潮(余)流场分布特征;由湾外至湾顶,余流呈减小的趋势,湾外余流最大约为12cm/s,湾内较小,余流平均约为1cm/s;垂向上,表层余流大于底层余流,表层余流指向湾外,而底层余流则指向湾内;本模型较好地再现了三沙湾水体层化和垂向余环流结构。

关键词: ROMS模型, 三沙湾, 余流, 数值模拟, ROMS model, Sansha Bay, tidal residual currents, numerical simulation

Abstract: Based on the ROMS model, considering the temperature, salinity, currents, net heat, moisture, momentum and runoff, this paper built the hydrodynamic numerical model in Sansha Bay. Combined with the observed data, the hydrodynamic numerical model was validated, the spatial distribution and distribution characteristics of tidal residual currents were researched and analyzed. The results showed that the model based on ROMS could reflect the distribution characteristics of tidal and residual currents in Sansha Bay well; the tidal residual currents decreased from outer to inner of the bay; on the vertical section, the surface residual currents were larger than the bottom residual currents; the surface currents flowed out of the bay, while the bottom currents flowed into the bay; this model clearly performed the water stratification and vertical structute of residual circulation in Sansha Bay.

中图分类号: