A review on the synoptic weather effects on sea ice outflow through Fram Strait: cyclone vs anticyclone
at : Sep 20, 2019 14:53:31  (view:43)

LIANG Yu1,4, BI Haibo1,2,3*, WANG Yunhe1,4, ZHANG Zehua1,2,3, ZHANG Yi1,2,3, YAN Liwen1,2,3, LIU Yanxia1,2,3, HUANG Haijun1,4

1Key laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, 266071 Qingdao, China

2Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, 266237 Qingdao, China

3Center for Ocean Mega-Science, Chinese Academy of Sciences, 266071 Qingdao, China

4University of Chinese Academy of Sciences, 100049 Beijing, China

AbstractSea ice outflow through Fram Strait is a vital component associated with the Arctic sea ice mass balance. Previous studies have examined the role of large-scale atmospheric circulation, such as Artic Oscillation (AO), North Atlantic Oscillation (NAO),and Dipole Anomaly (DA). This review emphasizes the distinct impacts of the synoptic weather on sea ice export as well as on the relevant fields (sea ice concentration and sea ice drift fields). We analyze the insufficiency that needs to be addressed in the available studies and summarize the potential research subjects aiming to further our interpretation of the relationship between synoptic weather and sea ice export via Fram Strait. For instance, the connection between anticyclone in summer and weakened potential vorticity (PV) due to the observed extensive spring Eurasia snow and Siberian Ocean sea ice loss is of great interests in an our incoming study. The in-depth exploration of this sort of geophysical mechanisms is particularly useful to assess the robustness of the linkage that has been inferred from statistical ways.  

KeywordsSea ice outflow, Fram Strait, Cyclone, Anticyclone