Possible contribution of Arctic sea ice decline to intense warming over Siberia in June

作     者：Ying Zhang Mengqi Zhang Jiehua Ma Dong Chen Tao Wang Ying Zhang;Mengqi Zhang;Jiehua Ma;Dong Chen;Tao Wang

作者机构：Climate Change Research CenterInstitute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Nansen-Zhu International Research Center CentreInstitute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina Key Laboratory of Meteorological DisasterMinistry of Education/Collaborative Innovation Center on Forecast and Evaluation of Meteorological DisastersNanjing University of Information Science&TechnologyNanjingChina 

出 版 物：《Atmospheric and Oceanic Science Letters》 (大气和海洋科学快报（英文版）)

年 卷 期：2022年第15卷第2期

页      面：59-64页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 0706[理学-大气科学] 

基　　金：supported by the National Key R&D Pro-gram of China[grant number 2017YFE0111800] the National Natural Science Foundation of China[grant numbers 41790472 and 41822502] 

主　　题：Intense Siberian warming Arctic sea ice decline Surface radiation flux Turbulent heat flux 

摘      要：Siberia experienced intense heat waves in 2020,and this unusual warming may have caused more wildfires and losses of permafrost than normal,both of which can be devastating to *** on observational data,this paper shows that there was an intense warming trend over Siberia(60°–75°N,70°–130°E)in June during 1979–*** linear trend of the June surface air temperature is 0.90℃/10 yr over Siberia,which is much larger than the area with the same latitudes(60°–75°N,0°–360°,trend of 0.46℃/10 yr).The warming over Siberia extends from the surface to about 300 h *** geopotential height in the mid-to-upper troposphere plays an important role in shaping the Siberian warming,which favors more shortwave radiation reaching the surface and further heating the overlying atmosphere via upward turbulent heat flux and longwave *** Siberian warming is closely related to Arctic sea-ice decline,especially the sea ice over northern Barents Sea and Kara *** experiments carried out using and atmospheric general circulation model(IAP-AGCM4.1)confirmed the contribution of the Arctic sea-ice decline to the Siberian warming and the related changes in circulations and surface fluxes.