Polar vortex controls coupling of North Atlantic Ocean and atmosphere

Details Polar vortex controls coupling of North Atlantic Ocean and atmosphere Polar vortex controls coupling of North Atlantic Ocean and atmosphere

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3201704g&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 1, CiteID L01704

Other

1

Global Change: Climate Dynamics (0429, 3309), Atmospheric Processes: Stratosphere/Troposphere Interactions, Atmospheric Processes: Ocean/Atmosphere Interactions (0312, 4504), Oceanography: General: Climate And Interannual Variability (1616, 1635, 3305, 3309, 4513)

Scientific paper

The structure of the North Atlantic leading atmospheric winter variability mode strongly depends on the state of the polar stratospheric vortex. If the polar vortex is strong, one teleconnection pattern emerges in the upper troposphere, while two mostly independent ones appear when the vortex is weak. The anomaly patterns associated with the different polarities of these modes show strong differences in the wind fields and in the correlation of atmospheric variability with the sea surface temperature of the North Atlantic. Only when the polar vortex is strong, does a basin-wide tripole correlation pattern exist between tropospheric variability and sea surface temperature. Under weak vortex conditions one of the variability modes correlates with the subtropical, the other with the subpolar gyre. These results suggest that a NAO index based on near surface pressure that fails to account for the state of the polar vortex is a suboptimal representation of the tropospheric circulation variability.

Affiliated with

Also associated with

No associations

Rating

Polar vortex controls coupling of North Atlantic Ocean and atmosphere does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Polar vortex controls coupling of North Atlantic Ocean and atmosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polar vortex controls coupling of North Atlantic Ocean and atmosphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-901990