2010 Workshop:Stratwarming
From CedarWiki
Atmospheric coupling during stratospheric sudden warmings
Location, Date/Time and Duration
4 hours
Conveners
L. Goncharenko
Hanli Liu
Lynn Harvey
Jorge Chau
Workshop Categories
Altitudes: IT - Latitudes: global - Inst/Model: radar - Other: multiple instruments and models
Format of the Workshop
short presentations and discusssion
Estimated attendance
50
Conflicts with other workshops or Requested Specific Days
none
Special technology requests
Description
Stratospheric sudden warmings (SSWs) are large-scale meteorological phenomenon that occur sporadically each Arctic winter. During SSWs, the polar stratosphere warms, the mesosphere cools, and the thermosphere warms. Stratospheric disturbances later propagate downward into the troposphere and affect weather patterns. Recent studies revealed that coupling processes extend to the upper thermosphere and ionosphere and are observed over a wide range of latitudes. Large planetary wave activity preceding stratospheric warming events and its interactions with the mean circulation and tides are thought to be the primary mechanisms responsible for upper atmosphere effects. We invite experimental, observational, and modeling studies that focus on atmospheric coupling (both vertical and horizontal) during SSWs, similarities and differences in coupling patterns during different SSWs, and the temporal development of SSW-induced variations in the stratosphere, mesosphere and upper atmosphere.
Workshop Summary
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