 |
| Titel |
The East Asian Summer Monsoon at mid-Holocene: results from PMIP3 simulations |
| VerfasserIn |
W. Zheng, B. Wu, J. He, Y. Yu |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1814-9324
|
| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 9, no. 1 ; Nr. 9, no. 1 (2013-02-25), S.453-466 |
| Datensatznummer |
250017997
|
| Publikation (Nr.) |
 copernicus.org/cp-9-453-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
| Ten Coupled General Circulation Models (CGCMs) participated in the third
phase of Paleoclimate Modelling Intercomparison Project (PMIP3) are assessed
for the East Asian Summer Monsoon (EASM) in both the pre-Industrial (PI, 0 ka)
and mid-Holocene (MH, 6 ka) simulations. Results show that the PMIP3
model median captures well the large-scale characteristics of the EASM,
including the two distinct features of the Meiyu rainbelt and the stepwise
meridional displacement of the monsoonal rainbelt. At mid-Holocene, the
PMIP3 model median shows significant warming (cooling) during boreal summer
(winter) over Eurasia continent that are dominated by the changes of
insolation. However, the PMIP3 models fail to simulate a warmer annual mean
and winter surface air temperature (TAS) over eastern China as derived from
proxy records. The EASM at MH are featured by the changes of large-scale
circulation over Eastern China while the changes of precipitation are not
significant over its sub-domains of the Southern China and the lower reaches
of Yangzi River. The inter-model differences for the monsoon precipitation
can be associated with different configurations of the changes in
large-scale circulation and the water vapour content, of which the former
determines the sign of precipitation changes. The large model spread for the
TAS over Tibetan Plateau has a positive relationship with the precipitation
in the lower reaches of Yangzi River, yet this relationship does not apply
to those PMIP3 models in which the monsoonal precipitation is more
sensitive to the changes of large-scale circulation. Except that the PMIP3
model median captured the warming of annual mean TAS over Tibetan Plateau,
no significant improvements can be concluded when compared with the PMIP2
models results. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|