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Eurasian Cold Surges Triggered by the Nonlinear Reflection of Stratospheric Planetary Waves in December 2012
SOLA : Scientific Online Letters on the Atmosphere
Eurasia experienced severe cold weather in December 2012. Particularly strong cold spells occurred in two regions: one over eastern Eurasia in early December, and the other in central to western Eurasia in mid-December. These extreme events were produced in association with blocking phenomena triggered by reflection or downward propagation of planetary waves from the stratosphere. This event was unusual in that dominant component of upward and downward propagating wave is different: zonaldoi:10.2151/sola.2017-026 fatcat:z7c7co5bu5ggvgx5s4rkxsv6ma