Arctic summertime anticyclonic circulation mode and its influence on substantial sea ice depletion:a review  

作　　者：BI Haibo LIANG Xi LEI Ruibo HU Mengqi WEI Shuo 

机构地区：[1]Key laboratory of Marine Geology and Environment,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China [2]Laboratory for Marine Geology,Laoshan Laboratory,Qingdao 266237,China [3]Key Laboratory of Marine Hazards Forecasting,National Marine Environmental Forecasting Center,Ministry of Natural Resources,Beijing 100081,China [4]Key Laboratory of Polar Science,MNR,Polar Research Institute of China,Shanghai 200136,China [5]College of Marine Science and Engineering,Shandong University of Science and Technology,Qingdao 266590,China

出　　处：《Advances in Polar Science》2023年第2期67-79,共13页极地科学进展（英文版）

基　　金：This work is financially supported by Laoshan Laboratory(Grant no.LSKJ202203003);National Natural Science Foundation of China(Grant nos.42276250,41976221);General Project of Natural Science Foundation of Shandong Province(Grant no.ZR2020MD100).

摘　　要：The summertime anticyclonic circulation mode(SACM)is related to recent substantial loss of sea ice in the Arctic.This review outlines the potential causes of the SACM and considers its influence on sea ice depletion.Local triggers(i.e.,sea ice loss and sea surface temperature(SST)variation)and spatiotemporal teleconnections(i.e.,extratropical cyclone intrusion,tropical and mid-latitude SST anomalies,and winter atmospheric circulation preconditions)are discussed.The influence of the SACM on the dramatic loss of sea ice is emphasized through inspection of relevant dynamic(i.e.,Ekman drift and export)and thermodynamic(i.e.,moisture content,cloudiness,and associated changes in radiation)mechanisms.Moreover,the motivation for investigation of the underlying physical mechanisms of the SACM in response to the recent substantial sea ice depletionis also clarified through an attempt to better understand the shifting ice-atmosphere interaction in the Arctic during summer.Therecord low extent of sea ice in September 2012 could be reset in the near future if the SACM-like scenario continues to exist during summer in the Arctic troposphere.

关 键 词：summertime anticyclonic circulation mode sea ice ARCTIC CYCLONE 

分 类 号：P434[天文地球—大气科学及气象学] P731.15