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| Titel |
The influence of dynamic vegetation on the present-day simulation and future projections of the South Asian summer monsoon in the HadGEM2 family |
| VerfasserIn |
G. M. Martin, R. C. Levine |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
2190-4979
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| Digitales Dokument |
URL |
| Erschienen |
In: Earth System Dynamics ; 3, no. 2 ; Nr. 3, no. 2 (2012-11-28), S.245-261 |
| Datensatznummer |
250001014
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| Publikation (Nr.) |
 copernicus.org/esd-3-245-2012.pdf |
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| Zusammenfassung |
| Various studies have shown the importance of Earth System feedbacks in the
climate system and the necessity of including these in models used for
making climate change projections. The HadGEM2 family of Met Office Unified
Model configurations combines model components which facilitate the
representation of many different processes within the climate system,
including atmosphere, ocean and sea ice, and Earth System components
including the terrestrial and oceanic carbon cycle and tropospheric
chemistry. We examine the climatology of the Asian summer monsoon in
present-day simulations and in idealised climate change experiments. Members
of the HadGEM2 family are used, with a common physical framework (one of
which includes tropospheric chemistry and an interactive terrestrial and
oceanic carbon cycle), to investigate whether such components affect the way
in which the monsoon changes. We focus particularly on the role of
interactive vegetation in the simulations from these model configurations.
Using an atmosphere-only HadGEM2 configuration, we investigate how the
changes in land cover which result from the interaction between the dynamic
vegetation and the model systematic rainfall biases affect the Asian summer
monsoon, both in the present-day and in future climate projections. We
demonstrate that the response of the dynamic vegetation to biases in
regional climate, such as lack of rainfall over tropical dust-producing
regions, can affect both the present-day simulation and the response to
climate change forcing scenarios. |
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