极地研究

极地研究 ›› 2019, Vol. 31 ›› Issue (1): 56-68.DOI: 10.13679/j.jdyj.20180023

• 研究论文 • 上一篇    下一篇

南极布兰斯菲尔德海峡正压潮数值模拟

周相乾1  胡松1,2  张瑜1,2   

  1. 1上海海洋大学海洋生态系统与环境实验室, 上海 201306;
    2国家渔业工程技术研究中心, 上海 201306
  • 收稿日期:2018-05-02 修回日期:2018-07-09 出版日期:2019-03-30 发布日期:2019-03-30
  • 通讯作者: 胡松
  • 基金资助:

    农业部项目(D-8002-15-8003-2)、国家自然科学基金(41706210)和上海海洋大学博士科研启动基金(A2-0203-00- 100344)资助

Numerical simulation of barotropic tide in the Bransfield Strait, Antarctica

Zhou Xiangqian1, Hu Song1,2, Zhang Yu1,2   

  • Received:2018-05-02 Revised:2018-07-09 Online:2019-03-30 Published:2019-03-30
  • Contact: Song Hu

PDF (PC)

484

摘要：

本文利用高分辨率的有限体积海洋模型(FVCOM)模拟了南极布兰斯菲尔德海峡附近海区的M2、S2、K1与O1 四个主要分潮, 模拟结果与验潮站资料基本符合。将模拟结果计算并利用潮汐调和常数绘制了同潮图, 该海峡附近海域的潮汐类型为混合半日潮, 全日潮在西南部及南极半岛附近海域较东北部南设得兰群岛附近海域比重偏大。通过分别计算4个分潮的潮能通量, 发现M2分潮潮能来自海峡东部的太平洋与威德尔海, S2、K1与O1分潮潮能来自大西洋与威德尔海。在布兰斯菲尔德海峡区域4个分潮共耗散90.6 MW, 其中O1分潮耗散最大, 约占到总潮能耗散的49.09%; 由威德尔海潮能在进入布兰斯菲尔德海峡之前, 在南极海峡区域4个分潮共耗散278.87 MW, 其中S2分潮耗散最大约占到总潮能耗散的39.09%。

关键词: 布兰斯菲尔德海峡, 潮汐数值模拟, 潮能分析, 有限体积海洋模型(FVCOM)

Abstract:

In this paper, the high resolution finite volume community ocean model (FVCOM) was used to simulate the four main tides of M2, S2, K1, and O1 in the Bransfield Strait, Antarctica. The co-tide chart was plotted using the tide harmonic constant. Using these data, the tidal form was calculated, which in this sea area is a mixed semi-diurnal tide. The diurnal tide in this area near the southwestern part of the Antarctic Peninsula was greater than that of the northeast around the South Shetland Island. By calculating the four dominant tidal fluxes respectively, we found that the tidal fluxes of M2 were from the Pacific Ocean and Weddell Sea. The tidal fluxes of S2, K1, and O1 were from the Atlantic Ocean and Weddell Sea. In the Bransfield Strait area, there was 90.6 MW of total dissipated energy for the four tides, with the largest tidal dissipation occurring in O1, accounting for approximately 49.09% of the total tidal energy dissipated. Before the Weddell tidal energy fluxes entered the Bransfield Strait, Antarctica, the four tides dissipated a total of 278.87 MW. The S2 sub-tidal accounted for approximately 39.09% of the total energy dissipation.

Key words: Bransfield Strait, tidal numerical model, tidal energy analysis, finite volume community ocean model (FVCOM)