Modeling the influence of Greenland ice sheet melting on the Atlantic 
meridional overturning circulation during the next millennia

Driesschaert, E.; Fichefet, T.; Goosse, H.; Huybrechts, P.; Janssens, I.; Mouchet, A.; Munhoven, G.; Brovkin, Victor; Weber, S. L.

doi:10.1029/2007GL029516

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Modeling the influence of Greenland ice sheet melting on the Atlantic meridional overturning circulation during the next millennia

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Zitation

Driesschaert, E., Fichefet, T., Goosse, H., Huybrechts, P., Janssens, I., Mouchet, A., et al. (2007). Modeling the influence of Greenland ice sheet melting on the Atlantic meridional overturning circulation during the next millennia. Geophysical Research Letters, 34: L10707. doi:10.1029/2007GL029516.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0023-E5D3-D

Zusammenfassung

A three-dimensional Earth system model of intermediate complexity including a dynamic ice sheet component has been used to investigate the long-term evolution of the Greenland ice sheet and its effects on the Atlantic meridional overturning circulation (AMOC) in response to a range of stabilized anthropogenic forcings. Our results suggest that the Greenland ice sheet volume should experience a significant decrease in the future. For a radiative forcing exceeding 7.5 W m(-2), the modeled ice sheet melts away within 3000 years. A number of feedbacks operate during this deglaciation, implying a strong nonlinear relationship between the radiative forcing and the melting rate. Only in the most extreme scenarios considered, the freshwater flux from Greenland into the surrounding oceans ( of ca. 0.1 Sv during a few centuries) induces a noticeable weakening of the AMOC in the model.