Frontal structures in the West Spitsbergen Current margins
Frontal structures in the West Spitsbergen Current margins
复制标题
西斯匹次卑尔根海流边缘的锋面结构
DOI：
10.5194/os-9-957-2013
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发表时间：
2013
期刊：
影响因子：
3.2
通讯作者：
W. Walczowski
中科院分区：
文献类型：
--
作者：
W. Walczowski
抽象的。本文讨论了在北方北欧海将南极起源沃茨与周围沃茨分隔开的水文锋面的结构。西斯匹次卑尔根海流的东西两支水流形成了大西洋域边界，并维持着这些前沿。这项工作的基础是以前的研究和在DAMOCLES项目（发展北极长期环境研究的建模和观测能力）中进行的调查。大多数观测数据是在大洋洲号考察船航行期间收集的。本文的主要重点是大西洋域的西部边界-北极锋，沿锋和transfrontal传输，锋的不稳定性和可变性。沿锋斜压急流是北欧海大西洋水和热量的重要来源。斜压不稳定和由斜压不稳定引起的斜压涡平流是主要的经锋输送过程。由西分支输送的大部分大西洋水向西和向南再循环。西斯匹次卑尔根海流的东部分支提供了大部分进入北冰洋的大西洋海水。这两个过程对北极和全球温盐环流都非常重要。
Abstract. The structures of the hydrographic fronts separating the Atlantic-origin waters from ambient waters in the northern Nordic Seas are discussed. Flows of the western and eastern branches of the West Spitsbergen Current create the Atlantic domain borders and maintain these fronts. This work is based on previous research and on investigations carried out in the project DAMOCLES (Developing Arctic Modelling and Observational Capabilities for Long-term Environmental Studies). Most of the observational data were collected during the R/V Oceania cruises. The main focus of the paper is the western border of the Atlantic domain – the Arctic Front, alongfrontal and transfrontal transports, and the front instability and variability. The alongfrontal baroclinic jet streams were described as a significant source of the Atlantic Water and heat in the Nordic Seas. The baroclinic instability and advection of baroclinic eddies which occurs due to this instability were found to be the main transfrontal transport processes. Most of the Atlantic Water transported by the western branch recirculates west and southward. The eastern branch of the West Spitsbergen Current provides most of the Atlantic Water entering the Arctic Ocean. Both processes are very important for the Arctic and global thermohaline circulation.
影响因子：
2.3
作者：
F. Nilsen;F. Cottier;R. Skogseth;S. Mattsson
通讯作者：
F. Nilsen;F. Cottier;R. Skogseth;S. Mattsson