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| Titel |
The role of mean ocean salinity in climate |
| VerfasserIn |
P. D. Williams, E. Guilyardi, G. Madec, S. Gualdi, E. Scoccimarro |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250019278
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| Zusammenfassung |
| We describe numerical simulations designed to help elucidate the role of ocean salinity in
climate. Using a coupled atmosphere-ocean general circulation model, we study a 100-year
sensitivity experiment in which the global-mean salinity is approximately doubled from its
present observed value, by adding 35 psu everywhere. The salinity increase produces a rapid
global-mean sea-surface warming of 0.8∘C within a few years, caused by reduced
vertical mixing associated with changes in cabbeling. The warming is followed by a
gradual global-mean sea-surface cooling of 0.4∘C during the first few decades, caused
by an increase in the vertical (downward) component of the isopycnal diffusive
heat flux. We find no evidence of impacts on the variability of either the Atlantic
thermohaline circulation or the El Ni |
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