Warming and depth convergence of the Arctic Intermediate Water in the Canada Basin during 1985-2006

doi:10.1007/s13131-012-0219-7

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋环境与数值模拟研究室

	Warming and depth convergence of the Arctic Intermediate Water in the Canada Basin during 1985-2006
	Li Shujiang 1,2; Zhao Jinping 1; Su Jie 1; Cao Yong 1
刊名	ACTA OCEANOLOGICA SINICA
	2012-07
卷号	31 期号:4 页码:46-54
关键词	Arctic Intermediate Water Canada Basin warming interannual variation convergence of AIW depth
ISSN号	0253-505X
DOI	10.1007/s13131-012-0219-7
英文摘要	The warming of the Arctic Intermediate Water (AIW) is studied based on the analyses of hydrographic observations in the Canada Basin of the Arctic Ocean during 1985-2006. It is shown that how the anomalously warm AIW spreads in the Canada Basin during the observation time through the analysis of the AIW temperature spatial distribution in different periods. The results indicate that by 2006, the entire Canada Basin has almost been covered by the warming AIW. In order to study interannual variability of the AIW in the Canada Basin, the Canada Basin is divided into five regions according to the bottom topography. From the interannual variation of AIW temperature in each region, it is shown that a cooling period follows after the warming event in upstream regions. At the Chukchi Abyssal Plain and Chukchi Plateau, upstream of the Arctic Circumpolar Boundary Current (ACBC) in the Canada Basin, the AIW temperature reached maximum and then started to fall respectively in 2000 and 2002. However, the AIW in the Canada Abyssal Plain and Beaufort Sea continues to warm monotonically until the year 2006. Furthermore, it is revealed that there is convergence of the AIW depth in the five different regions of the Canada Basin when the AIW warming occurs during observation time. The difference of AIW depth between the five regions of the Canada Basin is getting smaller and smaller, all approaching 410 in in recent years. The results show that depth convergence is related to the variation of AIW potential density in the Canada Basin.
资助项目	National Key Basic Research Program "973" of China[2010CB950301]
WOS研究方向	Oceanography
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000307428900005
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/4094]
专题	业务部门_海洋环境与数值模拟研究室
作者单位	1.Ocean Univ China, Qingdao 266100, Peoples R China; 2.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Li Shujiang,Zhao Jinping,Su Jie,et al. Warming and depth convergence of the Arctic Intermediate Water in the Canada Basin during 1985-2006[J]. ACTA OCEANOLOGICA SINICA,2012,31(4):46-54.
APA	Li Shujiang,Zhao Jinping,Su Jie,&Cao Yong.(2012).Warming and depth convergence of the Arctic Intermediate Water in the Canada Basin during 1985-2006.ACTA OCEANOLOGICA SINICA,31(4),46-54.
MLA	Li Shujiang,et al."Warming and depth convergence of the Arctic Intermediate Water in the Canada Basin during 1985-2006".ACTA OCEANOLOGICA SINICA 31.4(2012):46-54.