The Antarctic Oscillation Structure in an AOGCM with Interactive Stratospheric Ozone
Joint Authors
Dethloff, Klaus
Handorf, Dörthe
Brand, S.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-29
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Based on 150-year equilibrium simulations using the atmosphere-ocean-sea ice general circulation model (AOGCM) ECHO-GiSP, the southern hemisphere winter circulation is examined focusing on tropo-stratosphere coupling and wave dynamics.
The model covers the troposphere and strato-mesosphere up to 80 km height and includes an interactive stratospheric chemistry.
Compared to the reference simulation without interactive chemistry, the interactive simulation shows a weaker polar vortex in the middle atmosphere and is shifted towards the negative phase of the Antarctic Oscillation (AAO) in the troposphere.
Differing from the northern hemisphere winter situation, the tropospheric planetary wave activity is weakened.
A detailed analysis shows, that the modelled AAO zonal mean signal behaves antisymmetrically between troposphere and strato-mesosphere.
This conclusion is supported by reanalysis data and a discussion of planetary wave dynamics in terms of Eliassen-Palm fluxes.
Thereby, the tropospheric planetary wave activity appears to be controlled from the middle atmosphere.
American Psychological Association (APA)
Brand, S.& Dethloff, Klaus& Handorf, Dörthe. 2012. The Antarctic Oscillation Structure in an AOGCM with Interactive Stratospheric Ozone. ISRN Meteorology،Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-478047
Modern Language Association (MLA)
Brand, S.…[et al.]. The Antarctic Oscillation Structure in an AOGCM with Interactive Stratospheric Ozone. ISRN Meteorology No. 2012 (2012), pp.1-12.
https://search.emarefa.net/detail/BIM-478047
American Medical Association (AMA)
Brand, S.& Dethloff, Klaus& Handorf, Dörthe. The Antarctic Oscillation Structure in an AOGCM with Interactive Stratospheric Ozone. ISRN Meteorology. 2012. Vol. 2012, no. 2012, pp.1-12.
https://search.emarefa.net/detail/BIM-478047
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-478047