Sea ice retreat and its impact on cyclone activity in the Nordic Seas: insights from coupled regional climate model simulations

被引：0
|
作者：
Dembitskaya, M. A. [1 ]
Akperov, M. [1 ]
Semenov, V. A. [1 ,2 ]
Mokhov, I. I. [1 ,3 ]
Bokuchava, D. D. [1 ,2 ]
Dorn, W. [4 ]
Rinke, A. [4 ]
机构：
[1] RAS, AM Obukhov Inst Atmospher Phys, Moscow, Russia
[2] Inst Geog RAS, Moscow, Russia
[3] Lomonosov Moscow State Univ, Moscow, Russia
[4] Helmholtz Ctr Polar & Marine Res, Alfred Wegener Inst, Potsdam, Germany
来源：
CLIMATE CHANGE: CAUSES, RISKS, CONSEQUENCES, PROBLEMS OF ADAPTATION AND MANAGEMENT | 2020年 / 606卷
基金：
俄罗斯科学基金会;
关键词：
VARIABILITY; SENSITIVITY;
D O I：
10.1088/1755-1315/606/1/012009
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The impact of sea ice concentration (SIC) changes in the Nordic Seas on the winter cyclone activity in the Nordic Seas is analyzed in 10-member ensemble simulations with the coupled Arctic atmosphere-ocean-sea ice model HIRHAM-NAOSIM for the 1979-2016 period. The analysis reveals that anomalously low SIC in the Nordic Seas leads to decrease in vertical atmospheric static stability, and thus may result in favorable conditions for cyclogenesis in the Nordic Seas. Our analysis also shows a statistically significant increase of cyclone frequency over the Nordic Seas under conditions of the low SIC regime.
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页数：8
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