English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Sensitivity of the quasi-biennial oscillation to CO2 doubling

MPS-Authors
/persons/resource/persons37156

Giorgetta,  Marco A.
The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society;
Climate Modelling, The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society;

/persons/resource/persons37134

Doege,  Martin C.
The Atmosphere in the Earth System, MPI for Meteorology, Max Planck Society;

External Ressource
No external resources are shared
Fulltext (public)

2004GL021971.pdf
(Publisher version), 340KB

Supplementary Material (public)
There is no public supplementary material available
Citation

Giorgetta, M. A., & Doege, M. C. (2005). Sensitivity of the quasi-biennial oscillation to CO2 doubling. Geophysical Research Letters, 32(8): L08701. doi:10.1029/2004GL021971.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0011-FEFB-2
Abstract
The quasi-biennial oscillation (QBO) is a major oscillation with a characteristic period of 28 months that influences substantially the stratospheric circulation and chemistry. This exploratory study investigates its possible change by direct simulation of the QBO in a doubled CO2 climate for a range of gravity wave sources. It is found that a QBO spin-up is likely. In the most extreme case the period is nearly halved. Important accelerating factors are the decreased tropical upwelling and increased gravity wave drag, while increased filtering of eastward gravity waves in the upper tropical troposphere acts as a decelerating factor.