The study on near surface temperature maximum in the Canada basin for 2003-2008 in response to sea ice variations

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

	The study on near surface temperature maximum in the Canada basin for 2003-2008 in response to sea ice variations
	Cao, Yong 1; Su, Jie 1; Zhao, Jinping 1; Li, Shujiang 2; Xu, Dong 1
	2010
会议日期	6 20, 2010 - 6 25, 2010
会议地点	Beijing, China
卷号	1
期号	1
页码	1238-1242
英文摘要	The vertical properties and the space-time variations of the upper water mass in the Canada Basin are investigated using CTD data collected from 2003 to 2008. In most areas there were four temperature maximum waters in the Canada Basin in summer which named North Atlantic Intermediate Water (NAIW), Alaskan Coastal Water (ACW), summer Bering Sea Water (sBSW) and Near Surface Temperature Maximum (NSTM). The temperature of the NSTM was higher than the freezing point and lower than ACW except in ice-free area where the maximum temperature might reach 2°C. In this paper, the vertical structures of temperature show that the maxima of NSTM in 2007 were higher, while the salinity, density and depth of NSTM were lower than that in other years. The observations suggest the following ice-ocean processes are occurring. The melting ice water reduced the salinity and density of the mixed layer water when the sea ice melts earlier in summer. The solar radiation heated the water more with lower sea ice concentration and ice extent. At the same time the intensification of air-sea heat exchange might accelerate the upward heat flux and reduce the net downwards heat transport, which led to the depth of temperature peak of NSTM deeper than before. In Canada Abyssal Plain, the NSTM occurred nearly every year but in 2003. In 2008, the NSTM for the first time occurred in the north of 80°N. The reduction of the Arctic sea ice could increase and enhance the NSTM occurrence. Copyright © 2010 by The International Society of Offshore and Polar Engineers (ISOPE).
会议录	Proceedings of the International Offshore and Polar Engineering Conference
会议录出版者	International Society of Offshore and Polar Engineers
语种	英语
ISSN号	10986189
内容类型	会议论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/7012]
专题	业务部门_海洋环境与数值模拟研究室
作者单位	1.Key Laboratory of Physical Oceanography, Ocean University of China, Qingdao, China; 2.First Institute of Oceanography, SOA, Qingdao, China
推荐引用方式 GB/T 7714	Cao, Yong,Su, Jie,Zhao, Jinping,et al. The study on near surface temperature maximum in the Canada basin for 2003-2008 in response to sea ice variations[C]. 见:. Beijing, China. 6 20, 2010 - 6 25, 2010.