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Please use this identifier to cite or link to this item:
http://hdl.handle.net/1956/420
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| Title: | Simulated variability of the Atlantic meridional overturning circulation |
| Authors: | Bentsen, M.
Drange, H.
Furevik, T.
Zhou, T. |
| Issue Date: | 17-Apr-2004 |
| Publisher: | Springer |
| Series/Report no.: | Climate Dynamics;22(6/7) |
| Abstract: | To examine the multi-annual to decadal scale
variability of the Atlantic Meridional Overturning Circulation
(AMOC) we conducted a four-member
ensemble with a daily reanalysis forced, medium-resolution
global version of the isopycnic coordinate ocean
model MICOM, and a 300-years integration with the
fully coupled Bergen Climate Model (BCM). The simulations
of the AMOC with both model systems yield a
long-term mean value of 18 Sv and decadal variability
with an amplitude of 1–3 Sv. The power spectrum of the
inter-annual to decadal scale variability of the AMOC in
BCM generally follows the theoretical red noise spectrum,
with indications of increased power near the 20-
years period. Comparison with observational proxy
indices for the AMOC, e.g. the thickness of the Labrador
Sea Water, the strength of the baroclinic gyre circulation
in the North Atlantic Ocean, and the surface
temperature anomalies along the mean path of the Gulf
Stream, shows similar trends and phasing of the variability,... |
| URI: | http://hdl.handle.net/1956/420 |
| ISSN: | 0930-7575
1432-0894 |
| Appears in Collections: | Eprints by the Geophysical Institute
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| GF-bentsen.pdf | 1466Kb | Adobe PDF | View/Open |
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