Weakened cyclones, intensified anticyclones and recent extreme cold winter weather events in Eurasia
By Xiangdong Zhang, Chuhan Lu, Z. Guan. 2012
137 citations recorded by the source corpus.
Extreme cold winter weather events over Eurasia have occurred more frequently in recent years in spite of a warming global climate. To gain further insight into this regional mismatch with the global mean warming trend, we analyzed winter cyclone and anticyclone activities, and their interplay with the regional atmospheric circulation pattern characterized by the semi-permanent Siberian high. We found a persistent weakening of both cyclones and anticyclones between the 1990s and early 2000s, and a pronounced intensification of anticyclone activity afterwards. It is suggested that this intensified anticyclone activity drives the substantially strengthening and northwestward shifting/expanding Siberian high, and explains the decreased midlatitude Eurasian surface air temperature and the increased frequency of cold weather events. The weakened tropospheric midlatitude westerlies in the context of the intensified anticyclones would reduce the eastward propagation speed of Rossby waves, favoring persistence and further intensification of surface anticyclone systems.
Subfields: Atmospheric Science, Global and Planetary Change
View Paper: https://www.semanticscholar.org/paper/0ec58c2f3194379975128671b894379c8deab336
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Atmospheric Science
In Global and Planetary Change
Citations in the corpus
- Changing state of Arctic sea ice across all seasons (2018, background): “It is not clear, however, howmuch these atmospheric changes have influenced the jet stream (Barnes 2013) or the influence on storm tracks and occurrence of blocking events (Zhang et al 2012, Barnes et al 2014, Barnes and Screen 2015).”
- Influence of the Gulf Stream on the Barents Sea ice retreat and Eurasian coldness during early winter (2014, background): “Change in atmospheric circulation over the North Atlantic sector is essential to understand causality between sea-ice retreat over the Barents Sea and midlatitude atmospheric circulations in the Eastern Hemisphere, because recent extreme cold weather events in Eurasia are related to weakened cyclone”
- Influence of Arctic sea ice on European summer precipitation (2013, background): “Reduced autumn and/or winter sea ice in the Barents Sea has been shown to strengthen the Siberian High and drive cold winters over Eurasia (Honda et al 2009, Petoukhov and Semenov 2010, Inoue et al 2012, Zhang et al 2012, Lim et al 2012, Tang et al 2013).”