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| Titel |
On the origin of continental precipitation |
| VerfasserIn |
Luis Gimeno, Anita Drumond, Raquel Nieto, Ricardo Trigo, Andreas Stohl |
| Konferenz |
EGU General Assembly 2011
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 13 (2011) |
| Datensatznummer |
250050849
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| Zusammenfassung |
| About 9 out of 10 liters of water evaporated from the
oceans every year precipitates back onto oceans. However,
the remaining 10% that get transported to continents play an
irreplaceable role feeding the land branch of the hydrological
cycle. Here we use an objective 3‐D Lagrangian model
(FLEXPART) to detect major oceanic moisture source
areas and the associated continental regions significantly
influenced by each moisture source. Our results reveal a
highly asymmetrical supply of oceanic moisture to the
continents, with the Northern Atlantic subtropical ocean
source impacting the continents considerably more than the
large Southern Indian and North Pacific sources. Also, the
small Mediterranean Sea and Red Sea basins are important
moisture sources for relatively large land areas. The Indian
subcontinent receives moisture from six different major
oceanic source regions. Future changes in meteorological
conditions over the oceanic moisture source regions may
have an impact on water availability for many river basins. |
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