Is the wind-stress forcing essential for the meridional overturning circulation?
We use a global coupled atmosphere‐ocean sea‐ice model of intermediate complexity to demonstrate that wind‐forcing is a crucial element to sustain meridional overturning flow in the Atlantic. Neglecting wind‐stress in our multi‐century‐long simulations leads to a complete shutdown of the conveyor be...
| Main Authors: | , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
AGU (American Geophysical Union)
2004
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| Subjects: | |
| Online Access: | https://oceanrep.geomar.de/id/eprint/4245/ https://oceanrep.geomar.de/id/eprint/4245/1/Timmermann_et_al-2004-Geophysical_Research_Letters.pdf http://www.ifm.uni-kiel.de/fb/fb1/tm/data/pers/atimmermann/abstracts/thcpaperwind.pdf https://doi.org/10.1029/2003GL01877 |
| Summary: | We use a global coupled atmosphere‐ocean sea‐ice model of intermediate complexity to demonstrate that wind‐forcing is a crucial element to sustain meridional overturning flow in the Atlantic. Neglecting wind‐stress in our multi‐century‐long simulations leads to a complete shutdown of the conveyor belt circulation. This result may have tremendous impacts for an assessment of the sensitivity of 2‐d climate models which typically do not capture wind‐driven gyres. It is argued that wind effects may be a key element in determining the fate and length of a collapsed THC state. Possible paleo implications will be discussed. |
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