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Author
Xu, X. ; Chassignet, E.P., Wang, F.
Title
On the variability of the Atlantic meridional overturning circulation transports in coupled CMIP5 simulations
Type
$loc['typeJournal Article']
Year
2018
Publication
Climate Dynamics
Abbreviated Journal
Clim Dyn.
Volume
51
Issue
11
Pages
6511-6531
Keywords
NAO-AMOC ; CMIP5 ; NAO index ; AMOC index ; meridional pressure gradient ; magnitude ; structure change of the NAO.
Abstract
The Atlantic meridional overturning circulation (AMOC) plays a fundamental role in the climate system, and long-term climate simulations are used to understand the AMOC variability and to assess its impact. This study examines the basic characteristics of the AMOC variability in 44 CMIP5 (Phase 5 of the Coupled Model Inter-comparison Project) simulations, using the 18 atmospherically-forced CORE-II (Phase 2 of the Coordinated Ocean-ice Reference Experiment) simulations as a reference. The analysis shows that on interannual and decadal timescales, the AMOC variability in the CMIP5 exhibits a similar magnitude and meridional coherence as in the CORE-II simulations, indicating that the modeled atmospheric variability responsible for AMOC variability in the CMIP5 is in reasonable agreement with the CORE-II forcing. On multidecadal timescales, however, the AMOC variability is weaker by a factor of more than 2 and meridionally less coherent in the CMIP5 than in the CORE-II simulations. The CMIP5 simulations also exhibit a weaker long-term atmospheric variability in the North Atlantic Oscillation (NAO). However, one cannot fully attribute the weaker AMOC variability to the weaker variability in NAO because, unlike the CORE-II simulations, the CMIP5 simulations do not exhibit a robust NAO-AMOC linkage. While the variability of the wintertime heat flux and mixed layer depth in the western subpolar North Atlantic is strongly linked to the AMOC variability, the NAO variability is not.
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$loc['no']
Call Number
COAPS @ rl18 @
Serial
981
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Author
Morey, S. ; Koch, M. ; Liu, Y. ; Lee, S. -K.
Title
Florida's oceans and marine habitats in a changing climate
Type
$loc['typeBook Chapter']
Year
2017
Publication
Florida's climate: Changes, variations, & impacts
Abbreviated Journal
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Issue
Pages
391-425
Keywords
Ocean climate ; Sea level rise ; Florida climate ; Gulf of Mexico ; AMOC ; Caribbean climate ; Florida hydrology ; Florida reefs ; Global warming
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Florida Climate Institute
Place of Publication
Gainesville, FL
Editor
Chassignet, E. P.; Jones, J. W.; Misra, V.; Obeysekera, J.
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$loc['no']
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COAPS @ mfield @
Serial
848
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Author
Hu, A. ; Meehl, G.A. ; Han, W. ; Lu, J. ; Strand, W.G.
Title
Energy balance in a warm world without the ocean conveyor belt and sea ice
Type
$loc['typeJournal Article']
Year
2013
Publication
Geophysical Research Letters
Abbreviated Journal
Geophys. Res. Lett.
Volume
40
Issue
23
Pages
6242-6246
Keywords
energy balance ; AMOC ; sea ice
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0094-8276
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$loc['no']
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COAPS @ mfield @
Serial
176
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