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Tropospheric jet response to Antarctic ozone depletion: An update with Chemistry-Climate Model Initiative (CCMI) models
- Source :
- Environmental Research Letters, Vol 13, Iss 5, p 054024 (2018)
- Publication Year :
- 2018
- Publisher :
- IOP Publishing, 2018.
-
Abstract
- The Southern Hemisphere (SH) zonal-mean circulation change in response to Antarctic ozone depletion is re-visited by examining a set of the latest model simulations archived for the Chemistry-Climate Model Initiative (CCMI) project. All models reasonably well reproduce Antarctic ozone depletion in the late 20th century. The related SH-summer circulation changes, such as a poleward intensification of westerly jet and a poleward expansion of the Hadley cell, are also well captured. All experiments exhibit quantitatively the same multi-model mean trend, irrespective of whether the ocean is coupled or prescribed. Results are also quantitatively similar to those derived from the Coupled Model Intercomparison Project phase 5 (CMIP5) high-top model simulations in which the stratospheric ozone is mostly prescribed with monthly- and zonally-averaged values. These results suggest that the ozone-hole-induced SH-summer circulation changes are robust across the models irrespective of the specific chemistry-atmosphere-ocean coupling.
Details
- Language :
- English
- ISSN :
- 17489326 and 54241979
- Volume :
- 13
- Issue :
- 5
- Database :
- Directory of Open Access Journals
- Journal :
- Environmental Research Letters
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.1fe9e40497b542419791254e6fa0ae7f
- Document Type :
- article
- Full Text :
- https://doi.org/10.1088/1748-9326/aabf21