open access

https://hdl.handle.net/2115/34478

Role of ozone in the solar cycle modulation of the North Atlantic Oscillation

英語

North Atlantic Oscillation

2008-07-26

American Geophysical Union

Journal of Geophysical Research

113(d14)

D14122

The effect of ozone on the 11-year solar cycle modulation of the winter-mean North Atlantic Oscillation (NAO) is examined through analyses of observed meteorological and ozone data from 1978 to 2000. It is found that a significant ozone anomaly associated with the winter NAO is created in winter in high solar (HS) years only and the anomaly persists from spring to summer, creating a large temperature anomaly in the lower stratosphere through radiative heating. Such a temperature anomaly in the stratosphere creates anomalous temperature of opposite sign at lower heights and anomalous zonal wind in the polar area of the troposphere in summer. The associated surface signal is very similar to the summer Arctic Oscillation (Summer-AO). The mechanism for the formation of the Summer-AO is also discussed.

学術雑誌論文

Accepted Manuscript

An edited version of this paper was published by AGU. Copyright 2008 American Geophysical Union.

0148-0227