scholarly journals Finding the steady state of a general circulation model through data assimilation: Application to the North Atlantic Ocean

1993 ◽  
Vol 98 (C11) ◽  
pp. 20149 ◽  
Author(s):  
Jochem Marotzke ◽  
Carl Wunsch
Keyword(s):  
Steady State ◽  
Data Assimilation ◽  
Atlantic Ocean ◽  
General Circulation Model ◽  
North Atlantic ◽  
General Circulation ◽  
North Atlantic Ocean ◽  
Circulation Model ◽  
The North ◽  
The North Atlantic

scholarly journals North Atlantic Oscillation Response to Anomalous Indian Ocean SST in a Coupled GCM

2005 ◽  
Vol 18 (24) ◽  
pp. 5382-5389 ◽  
Author(s):  
Jürgen Bader ◽  
Mojib Latif
Keyword(s):  
Indian Ocean ◽  
North Atlantic Oscillation ◽  
General Circulation Model ◽  
North Atlantic ◽  
General Circulation ◽  
Circulation Model ◽  
Atlantic Sector ◽  
The North ◽  
The Indian Ocean ◽  
The North Atlantic

Abstract The dominant pattern of atmospheric variability in the North Atlantic sector is the North Atlantic Oscillation (NAO). Since the 1970s the NAO has been well characterized by a trend toward its positive phase. Recent atmospheric general circulation model studies have linked this trend to a progressive warming of the Indian Ocean. Unfortunately, a clear mechanism responsible for the change of the NAO could not be given. This study provides further details of the NAO response to Indian Ocean sea surface temperature (SST) anomalies. This is done by conducting experiments with a coupled ocean–atmosphere general circulation model (OAGCM). The authors develop a hypothesis of how the Indian Ocean impacts the NAO.

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