The water mass variability and southward shift of the Southern Hemisphere mid-depth supergyre

doi:10.1007/s13131-013-0380-7

IOCAS-IR > 海洋环流与波动重点实验室

	The water mass variability and southward shift of the Southern Hemisphere mid-depth supergyre
	Duan Yongliang1,2 ; Hou Yijun 2; Liu Hongwei 2; Liu Yahao 2; Hou, YJ
	2013-11-01
发表期刊	ACTA OCEANOLOGICA SINICA
ISSN	0253-505X
卷号	32 期号:11 页码:74-81
文章类型	Article
摘要	The Southern Hemisphere subtropical supergyre at intermediate depths connects all three ocean basins and plays a significant role in responding and conveying the climate-change-related variations in the global ocean. On the basis of the Simple Ocean Data Assimilation (SODA) ocean reanalysis, the thermohaline variability and southward shift of the mid-depth supergyre are demonstrated. The steric height of the subsurface relative to 1 500 m (400-1 500 m) from the SODA depicts exactly the flow patterns and variability of the oceanic supergyre. During 1958-2007 the water masses in the gyre interiors become cooler/fresher, with the significant exceptions of the Agulhas Current system and Agulhas leakage. The results also exhibit a pronounced strengthening of the inter-basin connection of the supergyre, and the strongest southward shift, by about 2.5A degrees over the whole period, occurs in the central-south Pacific, which is associated with the changes in the basin-scale wind forcing.; The Southern Hemisphere subtropical supergyre at intermediate depths connects all three ocean basins and plays a significant role in responding and conveying the climate-change-related variations in the global ocean. On the basis of the Simple Ocean Data Assimilation (SODA) ocean reanalysis, the thermohaline variability and southward shift of the mid-depth supergyre are demonstrated. The steric height of the subsurface relative to 1 500 m (400-1 500 m) from the SODA depicts exactly the flow patterns and variability of the oceanic supergyre. During 1958-2007 the water masses in the gyre interiors become cooler/fresher, with the significant exceptions of the Agulhas Current system and Agulhas leakage. The results also exhibit a pronounced strengthening of the inter-basin connection of the supergyre, and the strongest southward shift, by about 2.5A degrees over the whole period, occurs in the central-south Pacific, which is associated with the changes in the basin-scale wind forcing.
关键词	Southern Hemisphere Supergyre Thermohaline Tendency Steric Height South Pacific
学科领域	Oceanography
DOI	10.1007/s13131-013-0380-7
URL	查看原文
收录类别	SCI
语种	英语
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:000327079700010
WOS关键词	TOTAL GEOSTROPHIC CIRCULATION ; ANTARCTIC INTERMEDIATE WATER ; FLOW PATTERNS ; PACIFIC-OCEAN ; INDIAN-OCEAN ; OZONE DEPLETION ; ANNULAR MODE ; PROJECTED CHANGES ; SUBTROPICAL GYRE ; ATMOSPHERIC CO2
WOS标题词	Science & Technology ; Physical Sciences
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/16446
专题	海洋环流与波动重点实验室
通讯作者	Hou, YJ
作者单位	1.State Ocean Adm, Ctr Ocean & Climate Res, Inst Oceanog 1, Qingdao 266061, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
第一作者单位	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Duan Yongliang,Hou Yijun,Liu Hongwei,et al. The water mass variability and southward shift of the Southern Hemisphere mid-depth supergyre[J]. ACTA OCEANOLOGICA SINICA,2013,32(11):74-81.
APA	Duan Yongliang,Hou Yijun,Liu Hongwei,Liu Yahao,&Hou, YJ.(2013).The water mass variability and southward shift of the Southern Hemisphere mid-depth supergyre.ACTA OCEANOLOGICA SINICA,32(11),74-81.
MLA	Duan Yongliang,et al."The water mass variability and southward shift of the Southern Hemisphere mid-depth supergyre".ACTA OCEANOLOGICA SINICA 32.11(2013):74-81.

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