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The Temperature of the Arctic and Antarctic Lower StratosphereThe temperature of the polar lower stratosphere during spring is the key factor in changing the magnitude of ozone loss in the polar vortices. In this talk, we will review the results of Newman et al. [2000] that quantitatively demonstrate that the polar lower stratospheric temperature is primarily controlled by planetary-scale waves. In particular, the tropospheric eddy heat flux in middle to late winter (January--February) is highly correlated with the mean polar stratospheric temperature during March. Strong midwinter planetary wave forcing leads to a warmer spring Arctic lower stratosphere in early spring, while weak midwinter forcing leads to cooler spring Arctic temperatures. In addition, this planetary wave driving also has a strong impact on the strength of the polar vortex. These results from the Northern Hemisphere will be contrasted with the Southern Hemisphere.
Document ID
20020070382
Document Type
Conference Paper
Authors
Newman, Paul A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Nash, Eric R.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Bhartia, P. K.
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Geophysics
Meeting Information
Meeting: Workshop on Arctic Ozone Loss
Location: Potsdam
Country: Germany
Start Date: March 4, 2002
End Date: March 6, 2002
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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