Global climate signals and equatorial SST variability in the Indian, Pacific and Atlantic oceans during the 20th century

Publication Status is "Submitted" Or "In Press: 
LDEO Publication: 
Publication Type: 
Year of Publication: 
2006
Editor: 
Journal Title: 
Geophysical Research Letters
Journal Date: 
Mar 30
Place Published: 
Tertiary Title: 
Volume: 
33
Issue: 
6
Pages: 
-
Section / Start page: 
Publisher: 
ISBN Number: 
0094-8276
ISSN Number: 
Edition: 
Short Title: 
Accession Number: 
ISI:000236729500002
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Call Number: 
Abstract: 

Oceanic global and individual basin (i.e., Indian, Pacific and Atlantic oceans) sea surface temperature (SST) and sea level pressure (SLP) are analyzed jointly, using MTM/SVD technique. Besides global and individual secular variability, differences in low-frequency climate signals are evidenced: that is, an inter-decadal signal dominates in the Indian and Pacific oceans, while a quasi-decadal signal dominates in the Pacific and Atlantic oceans. Two inter-annual global and individual climate signals dominate: i.e., ENSO and quasi-biennial (QB). Moreover, significant correlations are found between three known equatorial SST indices (i.e., IO1 in Indian Ocean, NINO3 in Pacific Ocean, and ATL2 in Atlantic Ocean), and SST time-series obtained by summing-up only global lead-frequency signals identified here: i.e., 0.74, 0.82, and 0.56 respectively. These results should help improving long-term climate numerical forecasts and mitigating societal impacts by using observed specific equatorial SSTs time-series, in a climate change context.

Notes: 

031UKTimes Cited:2Cited References Count:32

DOI: 
Doi 10.1029/2005gl025176