Variability of Antarctic Intermediate Water south of Australia and its relationship with frontal waves

doi:10.1007/s11430-015-0179-5

IOCAS-IR > 海洋环流与波动重点实验室

	Variability of Antarctic Intermediate Water south of Australia and its relationship with frontal waves
	Zhang LinLin 1,2,3; Yan XiaoMei 1,2,3; Sun Che 1,2,3; Hu DunXin 1,2,3
	2016-08-01
发表期刊	SCIENCE CHINA-EARTH SCIENCES
卷号	59 期号:8 页码:1674-1682
文章类型	Article
摘要	A streamfunction EOF method is applied to a time series of hydrographic sections in the Southern Ocean south of Australia to study water mass variations. Results show that there are large thermohaline variations north of the Subantarctic Front ( SAF) at 300-1500 dbar level, indicating upwelling and downwelling of the Antarctic Intermediate Water ( AAIW) along isopycnal surfaces. Based on the latest altimeter product, Absolute Dynamic Topography, a mechanism due to frontal wave propagation is proposed to explain this phenomenon, and an index for frontal waves is defined. When the frontal wave is in positive ( negative) phase, the SAF flows northeastward ( southeastward) with the fresh AAIW downwelling ( upwelling). Such mesoscale processes greatly enhance cross-frontal exchanges of water masses. Spectral analysis shows that frontal waves in the Southern Ocean south of Australia are dominated by a period of about 130 days with a phase speed of 4 cm/s and a wavelength of 450 km.
关键词	Antarctic Intermediate Water (Aaiw) Stream-coordinates Frontal Wave Eof
DOI	10.1007/s11430-015-0179-5
收录类别	SCI
语种	英语
WOS记录号	WOS:000380680400015
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.qdio.ac.cn/handle/337002/135875
专题	海洋环流与波动重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Ocean & Climate Dynam, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所; 海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Zhang LinLin,Yan XiaoMei,Sun Che,et al. Variability of Antarctic Intermediate Water south of Australia and its relationship with frontal waves[J]. SCIENCE CHINA-EARTH SCIENCES,2016,59(8):1674-1682.
APA	Zhang LinLin,Yan XiaoMei,Sun Che,&Hu DunXin.(2016).Variability of Antarctic Intermediate Water south of Australia and its relationship with frontal waves.SCIENCE CHINA-EARTH SCIENCES,59(8),1674-1682.
MLA	Zhang LinLin,et al."Variability of Antarctic Intermediate Water south of Australia and its relationship with frontal waves".SCIENCE CHINA-EARTH SCIENCES 59.8(2016):1674-1682.

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