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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >A case study of the anomalous Arctic sea ice conditions during 1990: Insights from coupled and uncoupled regional climate model simulations - art. no. 4275
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A case study of the anomalous Arctic sea ice conditions during 1990: Insights from coupled and uncoupled regional climate model simulations - art. no. 4275

机译：1990年北极海冰异常情况的案例研究：耦合和非耦合区域气候模型模拟的见解-艺术。没有。 4275

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1] The regional coupled atmosphere-ice-ocean model HIRHAM-MOM has been developed to simulate the Arctic climate. The model has been applied for the year 1990, which was characterized by anomalous ice retreat along the eastern Arctic coasts. Many observed features of the anomalous atmospheric circulation and sea ice concentration pattern during spring to early summer are reproduced by the model. It was even able to generate the extreme summer sea ice conditions in the Eurasian Arctic and the associated high surface air temperatures. The model shows less success in simulating the large ice retreat in the Siberian Arctic in late summer. This is explained mainly by deviations in the simulated atmospheric circulations. Results from an ocean-ice-alone model confirm that the atmospheric forcing dominates the simulated ice retreat. On the other hand, a sensitivity study with the atmosphere-alone model shows the impact of the sea ice conditions on the atmospheric circulation. Only with the accurate satellite-derived sea ice data is the model able to reproduce the anomalous late summer atmospheric pressure patterns. [References: 45
机译：1]已开发出区域耦合冰海模型HIRHAM-MOM以模拟北极气候。该模型已应用于1990年，其特征是北极东部沿海沿岸异常退冰。该模型再现了春季至初夏期间大气环流异常和海冰集中模式的许多观测特征。它甚至能够在欧亚北极地区产生极端的夏季海冰状况，并产生相应的地表高温。该模型在模拟夏末北极西伯利亚大冰区退缩方面显示出较小的成功。这主要是通过模拟大气环流的偏差来解释的。单单海洋冰模型的结果证实，大气强迫在模拟的冰层退缩中占主导地位。另一方面，仅大气模式的敏感性研究显示了海冰条件对大气环流的影响。只有利用准确的卫星海冰数据，该模型才能重现异常的夏末大气压模式。 [参考：45

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