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A Model Study of Interannual and Decadal Variability of the Arctic and Sub-Arctic Oceans.

机译：北极和亚北极海洋年际和年代际变异性的模型研究。

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In this work I investigate the interannual and decadal variability in the properties and the transformations of the Atlantic Water (AW) mass using an Ocean General Circulation Model. A course resolution tri-polar grid coupled ocean/sea ice model (NEMO-OPA/ NEMO-LIM) is forced with atmospheric parameters from NCEP/NCAR reanalysis. The quality of the model is assessed through comparison with observations.;The model results show that there are in general two major processes that influenced the heat and salt balance of the Arctic and Sub-Arctic between 1985 and 2005. In the first decade of this period the volume flux of Atlantic Water into the Nordic Seas was not balanced by the outflow of Atlantic Water into the Arctic. This was a period of increase of the Atlantic Water volume and temperature in the Nordic Seas. Secondly, the Atlantic Water inflow into the Nordic Seas was warmer and saltier than normal between 1995 and 2005. THese two processes caused a rise in the model temperature of the Arctic and Sub-Arctic similar to observed warming trend in these regions.

机译：在这项工作中，我使用海洋总循环模型研究了大西洋水（AW）质量和转换的年际和年代际变化。通过NCEP / NCAR重新分析得出的大气参数强制建立了航向分辨率三极网格耦合海洋/海冰模型（NEMO-OPA / NEMO-LIM）。模型的质量通过与观察值的比较进行评估。模型的结果表明，在1985年至2005年之间，总体上有两个主要过程影响了北极和次北极的热量和盐分平衡。在此期间，大西洋水流入北极的流量并未平衡。这是北欧海域大西洋水量和温度上升的时期。其次，1995年至2005年期间，大西洋水流入北欧海域的温度比正常水平高和咸。这两个过程导致北极和次北极的模型温度升高，与在这些地区观测到的变暖趋势相似。

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作者
Lundrigan, Sarah Emily Mae.;
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作者单位

Memorial University of Newfoundland (Canada).;

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授予单位 Memorial University of Newfoundland (Canada).;
学科 Physical Oceanography.
学位 M.Sc.
年度 2010
页码 91 p.
总页数 91
原文格式 PDF
正文语种 eng
中图分类普通生物学;
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A Model Study of Interannual and Decadal Variability of the Arctic and Sub-Arctic Oceans.

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