ENSO related variability in the Southern Hemisphere, 1948-2000

Details ENSO related variability in the Southern Hemisphere, 1948-2000 ENSO related variability in the Southern Hemisphere, 1948-2000

Jan 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30a...6r&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 1, pp. 6-1, CiteID 1006, DOI 10.1029/2002GL015818

Physics

8

Meteorology And Atmospheric Dynamics: Climatology (1620), Meteorology And Atmospheric Dynamics: Ocean/Atmosphere Interactions (0312, 4504), Meteorology And Atmospheric Dynamics: Polar Meteorology

Scientific paper

The spatiotemporal evolution of Southern Hemisphere climate variability is diagnosed based on the use of the NCEP reanalysis (1948-2000) dataset. Using the MTM-SVD analysis method, significant narrowband variability is isolated from the multi-variate dataset. It is found that the ENSO signal exhibits statistically significant behavior at quasiquadrennial (3-6 yr) timescales for the full time-period. A significant quasibiennial (2-3 yr) timescales emerges only for the latter half of period. Analyses of the spatial evolution of the two reconstructed signals shed additional light on linkages between low and high-latitude Southern Hemisphere climate anomalies.

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