 |
| Titel |
Mechanism Connecting African and Indian Monsoon Megadroughts |
| VerfasserIn |
Laura Feudale, Fred Kucharski |
| Konferenz |
EGU General Assembly 2011
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250050671
|
|
|
|
|
|
| Zusammenfassung |
| There are many factors and mechanisms capable to influence and perturb
rainfall in both African and Indian monsoon regions. Using observed data
and ensembles of Atmospheric General Circulation Model (AGCM) simulations,
evidence is presented that an association between the two systems exists
on decadal timescales. Decadal variability of rainfall in the two monsoon
systems results from a large scale forcing induced by an interplay of
different ocean basins. The emerging pattern is characterized by warmer
(cooler) equatorial and cooler (warmer) extratropical regions. This large
scale forcing pattern leads to an upper-level pressure gradient that
modifies the Tropical Easterly Jet, thus providing the link between
the African and Indian monsoon. |
|
|
|
|
|