Mechanism study of the ENSO and southern high latitude climate teleconnections

Publication Status is "Submitted" Or "In Press: 
Yes
LDEO Publication: 
Yes
Publication Type: 
Year of Publication: 
2002
Journal Title: 
Geophysical Research Letters
Journal Date: 
Jul 15
Volume: 
29
Issue: 
14
Pages: 
-
ISBN Number: 
0094-8276
Accession Number: 
ISI:000178964600026
LDEO Publication Number: 
6330
Abstract: 

[1] Evidence of El Nino-Southern Oscillation (ENSO) teleconnections in the southern high latitude climate has been identified, although the mechanisms that might lead to such far-reaching teleconnections remain unresolved. Here we propose one such mechanism-the regional mean meridional atmospheric circulation (the regional Ferrel Cell)-responsible for the covariability of the ENSO and Antarctic Dipole (ADP; a predominant interannually-varying signal in the southern high latitudes). It is found that the altered storm tracks associated with the ENSO variability influence the regional Ferrel Cell indirectly by changing the meridional eddy heat flux divergence and convergence, and shifting the latent heat release zone. The changes of the regional Ferrel Cell then influence the southern high latitude climate by modulating the mean meridional heat flux.

Notes: 

610MVTimes Cited:11Cited References Count:23

DOI: 
Doi 10.1029/2002gl015143