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Determining subsurface oceanic changes in the Indian sector of the Southern Ocean using Argo float data
Polar Science ( IF 1.5 ) Pub Date : 2019-11-26 , DOI: 10.1016/j.polar.2019.100498
Shuhei Masuda

The Southern Annular Mode (SAM) is one of the most prominent climate modes in the southern hemisphere. Although the influence of SAM on the surface ocean state has been revealed by remote-sensing data, its influence on the subsurface ocean state is not well-defined. Starting in the mid-2000s, the Argo-float network was extended into higher-latitude regions in front of the sea ice zone, in particular in the Indian sector of the Southern Ocean. Integrated data, including several shipboard observations, enables us to investigate the relationship between interannual changes in the SAM and the surface-to-2000-m oceanic state. In this paper, we show that recent interannual changes in the wintertime subsurface oceanic state in the Indian sector are consistent with the fast response to the SAM proposed by previous model studies. In particular, the change in salinity is highly correlated with SAM variation, which has not been previously reported.



中文翻译:

使用Argo浮点数据确定印度洋南部海域的地下海洋变化

南半球环状模式(SAM)是南半球最突出的气候模式之一。尽管SAM已通过遥感数据揭示了其对地表海洋状态的影响,但它对地下海洋状态的影响尚不明确。从2000年代中期开始,Argo-float网络扩展到了海冰带前方的高纬度地区,特别是在南洋的印度部分。包括数个船上观测值在内的综合数据使我们能够研究SAM的年际变化与2000米至海面的海洋状态之间的关系。在本文中,我们表明印度冬季冬季地下海洋状态的年际变化与先前模型研究提出的对SAM的快速响应是一致的。尤其是,

更新日期:2019-11-26
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