All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 446 176 11
PDF Downloads 200 62 7

Interannual Variability of the Winter Stratosphere in the Northern Hemisphere

Karin LabitzkeInstitut für Meteorologie, Freie Universität Berlin, Federal Republic of Germany

Search for other papers by Karin Labitzke in
Current site
Google Scholar
PubMed
Close
Full access

Abstract

The interannual variability of the stratosphere in the northern winter is discussed, mainly on the basis of zonal harmonic wave analyses of the daily height and temperature fields in the middle stratosphere. Comparing 12 winters, common and distinctive characteristics of the midwinter disturbances have been evaluated and three types of midwinter warmings have been identified.

It is shown that the main difference between disturbed and undisturbed winter months in the middle stratosphere lies in the different development of zonal harmonic wave 2, and that the development and vertical extent of this wave depend on the vertical structure of the cold trough over Canada.

Abstract

The interannual variability of the stratosphere in the northern winter is discussed, mainly on the basis of zonal harmonic wave analyses of the daily height and temperature fields in the middle stratosphere. Comparing 12 winters, common and distinctive characteristics of the midwinter disturbances have been evaluated and three types of midwinter warmings have been identified.

It is shown that the main difference between disturbed and undisturbed winter months in the middle stratosphere lies in the different development of zonal harmonic wave 2, and that the development and vertical extent of this wave depend on the vertical structure of the cold trough over Canada.

Save