Interannual to decadal variability of outflow from the Labrador Sea
Interannual to decadal variability of outflow from the Labrador Sea
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DOI：
10.1029/2010gl045321
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发表时间：
2010-12
影响因子：
5.2
通讯作者：
J. Fischer;M. Visbeck;R. Zantopp;Nuno Nunes
中科院分区：
文献类型：
--
作者：
J. Fischer;M. Visbeck;R. Zantopp;Nuno Nunes
在拉布拉多海的弱对流与减少水团转化的十年，在对流区的平流和涡通量相结合，造成显着变暖的深沃茨在中央拉布拉多海和边界电流系统沿着拉布拉多陆架断裂。1997年至2009年期间，在拉布拉多海出口处，靠近53°N陆架断裂处，根据系泊流速计站，研究了与深水出口的联系。超过100年之久的流速计记录跨越了整个水柱，分析了高频变化，从表面到底层衰减，以及年平均流量，显示出年内到年际的变化，但没有检测到拉布拉多海深层和近底流强度的十年趋势。
A decade of weak convection in the Labrador Sea associated with decreasing water mass transformation, in combination with advective and eddy fluxes into the convection area, caused significant warming of the deep waters in both the central Labrador Sea and boundary current system along the Labrador shelf break. The connection to the export of Deep Water was studied based on moored current meter stations between 1997 and 2009 at the exit of the Labrador Sea, near the shelf break at 53°N. More than 100 year‐long current meter records spanning the full water column have been analyzed with respect to high frequency variability, decaying from the surface to the bottom layer, and for the annual mean flow, showing intra‐ to interannual variability but no detectable decadal trend in the strength of the deep and near‐bottom flow out of the Labrador Sea.