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, Anne; Munhoven, Guy; Brovkin, V.; Weber, S. L.

doi:10.1029/2007GL029516

Article (Scientific journals)

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

Driesschaert, E.; Fichefet, T.; Goosse, H. et al.

2007 • In Geophysical Research Letters, 34 (10)

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https://hdl.handle.net/2268/5018

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10.1029/2007GL029516

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Abstract :

[en] 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.

Disciplines :

Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others

Author, co-author :

Driesschaert, E.

Fichefet, T.

Goosse, H.

Huybrechts, P.

Janssens, I.

Mouchet, Anne ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)

Munhoven, Guy ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Labo de physique atmosphérique et planétaire (LPAP)

Brovkin, V.

Weber, S. L.

Language :

English

Title :

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

Publication date :

2007

Journal title :

Geophysical Research Letters

ISSN :

0094-8276

eISSN :

1944-8007

Publisher :

American Geophysical Union, Washington, United States - District of Columbia

Volume :

Issue :

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 28 January 2009

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