Premium
Tropospheric response to stratospheric ozone loss
Author(s) -
Kindem Ina T.,
Christiansen Bo
Publication year - 2001
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2000gl012552
Subject(s) - stratosphere , troposphere , polar vortex , climatology , northern hemisphere , atmospheric sciences , arctic oscillation , environmental science , geopotential height , southern hemisphere , ozone , ozone depletion , arctic , geopotential , ozone layer , precipitation , geology , meteorology , oceanography , physics
The response to realistic total column ozone trends on the troposphere and the stratosphere as simulated by the ARPEGE General Circulation Model (GCM) has been investigated. In both hemispheres, the lower stratosphere cooled and the polar vortex strengthened significantly during spring/early summer. The cooling trend was weaker than the observed trend in the Northern Hemisphere (NH), but stronger than the observed trend in the Southern Hemisphere (SH). In the troposphere, the changes in geopotential height resembled the positive phase of the Arctic Oscillation (AO) in the NH in March and the positive phase of the Antarctic Oscillation (AAO) in the SH during summer (December–February).