Trends in polar sea ice and associated global atmospheric circulations
Grant number: DP160101997 | Funding period: 2016 - 2021
The project aims to analyse the trends in sea ice extent over the polar regions, and explain them in terms of changes in the local and remote atmospheric circulation. In recent decades, Arctic sea ice has decreased dramatically, while increasing in the Antarctic. The resolution of this paradox is a pressing issue in climate science, as is the broad question of how sea ice influences, and is influenced by, climate conditions in the mid-latitudes and tropics. Anticipated outcomes include a better understanding of the nature of links between Australian climate and Antarctic ice, and between United States climate extremes and Arctic ice.
Related publications (13)
Antarctic skin temperature warming related to enhanced downward longwave radiation associated with increased atmospheric advection of moisture and temperature
Kazutoshi Sato, Ian Simmonds
We investigate linear trends in Antarctic skin temperatures (temperatures from about the top millimeter of the surface) over the f..
Collaborative impact of the NAO and atmospheric blocking on European heatwaves, with a focus on the hot summer of 2018
Muyuan Li, Yao Yao, Ian Simmonds, Dehai Luo, Linhao Zhong, Xiaodan Chen
Two intense heatwaves of July and early August 2018 are found to be associated with a European blocking (EB) event accompanied by ..
The winter midlatitude-Arctic interaction: effects of North Atlantic SST and high-latitude blocking on Arctic sea ice and Eurasian cooling
Binhe Luo, Lixin Wu, Dehai Luo, Aiguo Dai, Ian Simmonds
In this paper, the effects of Eurasian circulation patterns such as high-latitude European blocking (HEB) and Ural blocking (UB) e..
Revisiting the Cause of the 1989-2009 Arctic Surface Warming Using the Surface Energy Budget: Downward Infrared Radiation Dominates the Surface Fluxes
Sukyoung Lee, Tingting Gong, Steven B Feldstein, James A Screen, Ian Simmonds
The Arctic has been warming faster than elsewhere, especially during the cold season. According to the leading theory, ice-albedo ..
Increased Quasi Stationarity and Persistence of Winter Ural Blocking and Eurasian Extreme Cold Events in Response to Arctic Warming. Part II: A Theoretical Explanation
Dehai Luo, Yao Yao, Aiguo Dai, Ian Simmonds, Linhao Zhong
In Part I of this study, it was shown that the Eurasian cold anomalies related to Arctic warming depend strongly on the quasi stat..
Increased Quasi Stationarity and Persistence of Winter Ural Blocking and Eurasian Extreme Cold Events in Response to Arctic Warming. Part I: Insights from Observational Analyses
Yao Yao, Dehai Luo, Aiguo Dai, Ian Simmonds
Part I of this study examines the relationship among winter cold anomalies over Eurasia, Ural blocking (UB), and the background co..
Dominant Covarying Climate Signals in the Southern Ocean and Antarctic Sea Ice Influence during the Last Three Decades
D Cerrone, G Fusco, I Simmonds, G Aulicino, G Budillon
A composite dataset (comprising geopotential height, sea surface temperature, zonal and meridional surface winds, precipitation, c..
Impact of Ural Blocking on Winter Warm Arctic-Cold Eurasian Anomalies. Part I: Blocking-Induced Amplification
Dehai Luo, Yiqing Xiao, Yao Yao, Aiguo Dai, Ian Simmonds, Christian LE Franzke
In Part I of this study, the impact of Ural blocking (UB) on the warm Arctic-cold Eurasian (WACE) pattern associated with the wint..
Impact of Ural Blocking on Winter Warm Arctic-Cold Eurasian Anomalies. Part II: The Link to the North Atlantic Oscillation
Dehai Luo, Yiqing Xiao, Yina Diao, Aiguo Dai, Christian LE Franzke, Ian Simmonds
In Part I of this study, the Ural blocking (UB)-induced amplification role of winter warm Arctic-cold Eurasian (WACE) anomalies ha..