Physics
Scientific paper
Mar 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3205707p&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 5, CiteID L05707
Physics
7
Global Change: Climate Dynamics (0429, 3309), Atmospheric Processes: General Circulation (1223), Atmospheric Processes: Global Climate Models (1626, 4928), Atmospheric Processes: Ocean/Atmosphere Interactions (0312, 4504), Oceanography: General: Climate And Interannual Variability (1616, 1635, 3305, 3309, 4513)
Scientific paper
The influence of the Atlantic and Indo-Pacific oceans on Atlantic-European climate is investigated by analyzing ensemble integrations with the atmospheric general circulation model ECHAM4 forced by anomalous sea surface temperature and sea ice conditions restricted to the Atlantic (AOGA) and Indo-Pacific (I+POGA) oceans. The forcing from both the Indo-Pacific and Atlantic oceans are important for the generation of the sea level pressure (SLP) variability in the Atlantic region in the boreal winter season. Over the North Atlantic the SLP response in the I+POGA experiment projects on the North Atlantic Oscillation, while it projects on the East Atlantic Pattern in the AOGA experiment. In both experiments (I+POGA and AOGA) a quadrupole-type 500 hPa height anomaly pattern is simulated which emerges from the tropical Pacific and Atlantic oceans, respectively. In boreal summer the influence of the Atlantic Ocean dominates the SLP response in the Atlantic region. The tropical North Atlantic is a key region in forcing the SLP response over the Caribbean Sea in this season.
Latif Mojib
Pohlmann Holger
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