河口海岸科学技术与可持续的生态系统

孟加拉湾4个典型地区的涡旋热和盐输送

  • PERERA Lasitha ,
  • 陈更新 ,
  • GAMAGE Tilak ,
  • 王东晓
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  • 1. 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, 广州 510301, 中国
    2. 中国科学院大学, 北京 100049, 中国
    3. 卢胡那大学 渔业和海洋科学技术学院, 马塔拉 81000, 斯里兰卡

收稿日期: 2020-04-21

  网络出版日期: 2021-01-22

Eddy heat and salt transport in four typical regions in the Bay of Bengal

  • Lasitha PERERA ,
  • Gengxin CHEN ,
  • Tilak GAMAGE ,
  • Dongxiao WANG
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  • 1. State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
    2. University of Chinese Academy of Sciences, Beijing 100049, China
    3. Faculty of Fisheries and Marine Science and Technology, University of Ruhuna, Matara 81000, Sri Lanka

Received date: 2020-04-21

  Online published: 2021-01-22

摘要

利用涡扩散法、海面高度资料和气候水文资料, 对孟加拉湾海域海盆尺度涡(湍流)致热盐输运进行了估算. 结果发现, 在孟加拉湾大量的涡致输运主要存在于4个区域: 孟加拉湾北部的西部边界(NB)、孟加拉湾西部(WB)、斯里兰卡南部和东部(SWB)以及孟加拉湾东南部靠近马六甲海峡区域(SEB). 根据涡输运的气候态分布, 涡致热输运主要存在于NB和SWB海域, 而涡致盐输运主要存在于NB、SWB和SEB海域. 基于季节平均的涡致输运估计, NB和SWB海域涡致热输运较为显著的季节为初夏和夏季季风季节, 而在WB和SEB海域为后夏季风季节. 此外, 季节性涡流动能(EKE)调制通过季节性强化的东印度洋沿岸流(EICC)和西南/东北季风电流(SMC/NMC), 被确定为影响季节性涡流的主要因素之一, 在 NB、WB 和 SWB 区域分别进行运输.

本文引用格式

PERERA Lasitha , 陈更新 , GAMAGE Tilak , 王东晓 . 孟加拉湾4个典型地区的涡旋热和盐输送[J]. 华东师范大学学报(自然科学版), 2020 , 2020(S1) : 125 -129 . DOI: 10.3969/j.issn.1000-5641.202092224

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