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
Received date: 2020-04-21
Online published: 2021-01-22
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.
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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