Global SST/SLP waves during the 20th century

Publication Status is "Submitted" Or "In Press: 
LDEO Publication: 
Publication Type: 
Year of Publication: 
2003
Editor: 
Journal Title: 
Geophysical Research Letters
Journal Date: 
Jun 27
Place Published: 
Tertiary Title: 
Volume: 
30
Issue: 
12
Pages: 
-
Section / Start page: 
Publisher: 
ISBN Number: 
0094-8276
ISSN Number: 
Edition: 
Short Title: 
Accession Number: 
ISI:000184577600001
LDEO Publication Number: 
Call Number: 
Abstract: 

A discrete number of global signals in covarying sea surface temperature (SST) and sea level pressure (SLP) dominated climate variability from 40degreesS to 60degreesN during the 20th Century. They are the quasi-biennial (similar to2.2-year period), interannual (3- to 7-year period band), quasi-decadal (similar to11-year period), and interdecadal (similar to17-year period) signals. A joint frequency-domain analysis of SST and SLP anomalies over the global ocean finds these signals composed of mixed global standing modes and traveling waves that are similar in pattern and evolution. On each period scale, the global traveling wave is composed of global zonal wavenumbers-1 and -2, directed eastward with a phase speed that takes 1 to 2 cycles to traverse the global ocean between 40degreesS and 20degreesN. The existence of these global traveling waves may enhance the predictability of regional climate variability.

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708PRTimes Cited:13Cited References Count:20

DOI: 
Doi 10.1029/2003gl017055