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学科主题: Limnology; Oceanography
题名: Seasonal variability of salinity budget and water exchange in the northern Indian Ocean from HYCOM assimilation
作者: Zhang, YH ; Du, Y
通讯作者: duyan@scsio.ac.cn
关键词: seasonal variability ; salinity budget ; Arabian Sea ; Bay of Bengal ; zonal water exchange ; HYbrid Coordinate Ocean Model (HYCOM) assimilation
刊名: CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
发表日期: 2012
卷: 30, 期:6, 页:1082-1092
部门归属: [Zhang Yuhong; Du Yan] Chinese Acad Sci, State Key Lab Trop Oceanog, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
项目归属: LTO
摘要: Based on HYbrid Coordinate Ocean Model (HYCOM) assimilation and observations, we analyzed seasonal variability of the salinity budget in the southeastern Arabian Sea (AS) and the southern part of the Bay of Bengal (BOB), as well as water exchange between the two basins. Results show that fresh water flux cannot explain salinity changes in salinity budget of both regions. Oceanic advection decreases salinity in the southeastern AS during the winter monsoon season and increases salinity in the southern BOB during the summer monsoon season. In winter, the Northeast Monsoon Current (NMC) carries fresher water from the BOB westward into the southern AS; this westward advection is confined to 4A degrees-6A degrees N and the upper 180 m south of the Indian peninsula. Part of the less saline water then turns northward, decreasing salinity in the southeastern AS. In summer, the Southwest Monsoon Current (SMC) advects high-salinity water from the AS eastward into the BOB, increasing salinity along its path. This eastward advection of high-salinity water south of the India Peninsula extends southward to 2A degrees N, and the layer becomes shallower than in winter. In addition to the monsoon current, the salinity difference between the two basins is important for salinity advection.
语种: 英语
WOS记录号: WOS:000311286500021
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10075
Appears in Collections:热带海洋环境国家重点实验室(LTO)_期刊论文

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Recommended Citation:
Zhang, YH; Du, Y.Seasonal variability of salinity budget and water exchange in the northern Indian Ocean from HYCOM assimilation,CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2012,30(6):1082-1092
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文件名: s00343-012-1284-7.pdf
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