Abstract
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.
Original language | English (US) |
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Pages (from-to) | 6-1-6-4 |
Journal | Geophysical Research Letters |
Volume | 30 |
Issue number | 1 |
DOIs | |
State | Published - Jan 1 2003 |
All Science Journal Classification (ASJC) codes
- Geophysics
- General Earth and Planetary Sciences