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| Titel |
Tropospheric temperature response to stratospheric ozone recovery in the 21st century |
| VerfasserIn |
Y. Hu, Y. Xia, Q. Fu |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 11, no. 15 ; Nr. 11, no. 15 (2011-08-02), S.7687-7699 |
| Datensatznummer |
250009969
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| Publikation (Nr.) |
 copernicus.org/acp-11-7687-2011.pdf |
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| Zusammenfassung |
| Recent simulations predicted that the stratospheric ozone layer will likely
return to pre-1980 levels in the middle of the 21st century, as a
result of the decline of ozone depleting substances under the Montreal
Protocol. Since the ozone layer is an important component in determining
stratospheric and tropospheric-surface energy balance, the recovery of
stratospheric ozone may have significant impact on tropospheric-surface
climate. Here, using multi-model results from both the Intergovernmental
Panel on Climate Change Fourth Assessment Report (IPCC-AR4) models and
coupled chemistry-climate models, we show that as ozone recovery is
considered, the troposphere is warmed more than that without considering
ozone recovery, suggesting an enhancement of tropospheric warming due to
ozone recovery. It is found that the enhanced tropospheric warming is mostly
significant in the upper troposphere, with a global and annual mean
magnitude of ~0.41 K for 2001–2050. We also find that relatively
large enhanced warming occurs in the extratropics and polar regions in
summer and autumn in both hemispheres, while the enhanced warming is stronger
in the Northern Hemisphere than in the Southern Hemisphere. Enhanced warming
is also found at the surface. The global and annual mean enhancement of
surface warming is about 0.16 K for 2001–2050, with maximum enhancement in
the winter Arctic. |
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