The mean properties and variations of the Southern Hemisphere subpolar gyres estimated by Simple Ocean Data Assimilation(SODA) products

IOCAS-IR

	The mean properties and variations of the Southern Hemisphere subpolar gyres estimated by Simple Ocean Data Assimilation(SODA) products
	DUAN Yongliang; LIU Hongwei ; YU Weidong ; HOU Yijun
发表期刊	Acta Oceanologica Sinica
ISSN	0253-505X
	2016-07-15
出版年	2016
卷号	v.35 期号:07 页码:12-17
文献类型	CNKI期刊论文
摘要	Based on the Simple Ocean Data Assimilation(SODA) products,we study the mean properties and variations of the Southern Hemisphere subpolar gyres(SHSGs) in this paper.The results show that the gyre strengths in the SODA estimates are(55.9±9.8)×10~6m~3/s for the Weddell Gyre(WG),(37.0±6.4) ×10~6m~3/s for the Ross Gyre(RG),and(27.5±8.2)×10~6m~3/s for the Australian-Antarctic Gyre(AG),respectively.There exists distinct connectivity between the adjacent gyres and then forms an oceanic super gyre structure in the southern subpolar oceans.And the interior exchanges are about(8.0±3.2)×10~6m~3/s at around 70°E and(4.3±3.1)×10~6m~3/s at around 140°E.The most pronounced variation for all three SHSGs occurs on the seasonal time scale,with generally stronger(weaker)SHSGs during austral winter(summer).And the seasonal changes of the gyre structures show that the eastern boundary of the WG and AG extends considerably further east during winter and the interior exchange in the super gyre structure increases accordingly.The WG and RG also show significant semi-annual changes.The correlation analyses confirm that the variations of the gyre strengths are strongly correlated with the changes in the local wind forcing on the semi-annual and seasonal time scales.
关键词	the subpolar gyres Southern Ocean wind stress wind stress curl
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A009;
CNKI专题名称	气象学;
分类号	P434
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	The Shandong Provincial Natural Science Foundation,China under contract No.ZR2014DP011 ; the National Natural Science Foundation of China under contract No.41406012 ; the Basic Scientific Research Fund for National Public Institutes of China under contract No.2015G05 ; the Chinese Polar Science Strategy Research Foundation under contract NO.20150305 ; the Open Fund of the Key Laboratory of Ocean Circulation and Waves,Chinese Academy of Sciences under contract No.KLOCAW1405
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/189606
专题	中国科学院海洋研究所
作者单位	1.CenterforOceanandClimateResearch,FirstInstituteofOceanography,StateOceanicAdministration 2.LaboratoryforRegionalOceanographyandNumericalModeling,QingdaoNationalLaboratoryforMarineScienceandTechnology 3.KeyLaboratoryofOceanCirculationandWaves,InstituteofOceanology,ChineseAcademyofSciences
推荐引用方式 GB/T 7714	DUAN Yongliang,LIU Hongwei,YU Weidong,et al. The mean properties and variations of the Southern Hemisphere subpolar gyres estimated by Simple Ocean Data Assimilation(SODA) products. 2016.