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| Titel |
The global monsoon across timescales: coherent variability of regional monsoons |
| VerfasserIn |
P. X. Wang, B. Wang, H. Cheng, J. Fasullo, Z. T. Guo, T. Kiefer, Z. Y. Liu |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 10, no. 6 ; Nr. 10, no. 6 (2014-11-21), S.2007-2052 |
| Datensatznummer |
250117077
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| Publikation (Nr.) |
 copernicus.org/cp-10-2007-2014.pdf |
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| Zusammenfassung |
| Monsoon has earned increasing attention from the climate community since the
last century, yet only recently have regional monsoons been recognized as a
global system. It remains a debated issue, however, as to what extent and at
which timescales the global monsoon can be viewed as a major mode of climate
variability. For this purpose, a PAGES (Past Global Changes) working group
(WG) was set up to investigate the concept of the global monsoon and its
future research directions. The WG's synthesis is presented here. On the
basis of observation and proxy data, the WG found that the regional monsoons
can vary coherently, although not perfectly, at various timescales, varying
between interannual, interdecadal, centennial, millennial, orbital and
tectonic timescales, conforming to the global monsoon concept across
timescales. Within the global monsoon system, each subsystem has its own
features, depending on its geographic and topographic conditions.
Discrimination between global and regional components in the monsoon system
is a key to revealing the driving factors in monsoon variations; hence, the
global monsoon concept helps to enhance our understanding and to improve
future projections of the regional monsoons. This paper starts with a
historical review of the global monsoon concept in both modern and
paleo-climatology, and an assessment of monsoon proxies used in regional and
global scales. The main body of the paper is devoted to a summary of
observation data at various timescales, providing evidence of the coherent
global monsoon system. The paper concludes with a projection of future
monsoon shifts in a warming world. The synthesis will be followed by a
companion paper addressing driving mechanisms and outstanding issues in
global monsoon studies. |
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