Recent variability in the Atlantic water intrusion and water masses in Kongsfjorden, an Arctic fjord

被引：26

作者：

David, Divya T. ^{[1
]}

Krishnan, K. P. ^{[1
]}

机构：

[1] Minist Earth Sci, Natl Ctr Antarctic & Ocean Res, Vasco Da Gama 403804, Goa, India

来源：

POLAR SCIENCE | 2017年 / 11卷

关键词：

Polar waters; Kongsfjorden; Interannual variability; Water masses; Atlantic water intrusion; SEA-ICE; OCEAN; INFLOW; ADVECTION;

D O I：

10.1016/j.polar.2016.11.004

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

The present study reports high inter-annual variability in the water masses and in the intrusion of Atlantic origin waters in Kongsfjorden from 2000 to 2013 using both the historical (2000-2010 summers) and recent CTD measurements (2011-2013 summer/fall). An earlier intrusion of Atlantic Water (AW) into Kongsfjorden was observed in the contemporary years. An overall summertime subsurface warming is evident from the maximum September AW temperature in 2011 (4.8 degrees C), 2012 (5.8 degrees C) and 2013 (7 degrees C). The combination of a compensating surface flow to the subsurface intrusion of AW and the strong southeasterly surface winds during the peak summer, resulted in a corresponding net outflow of the surface fresh water layer from Kongsfjorden. This led to the decreased freshwater volume inside the fjord during 2013 (1 km(3)) compared to 2011 (3.1 km(3)) and 2012 (2.3 km(3)). (C) 2016 Elsevier B.V. and NIPR. All rights reserved.

引用

页码：30 / 41

页数：12

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