Damien Irving added abstract.tex  over 8 years ago

Commit id: 4dfba25bcf7278e0a572afa40759893da78a4262

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The Pacific-South American (PSA) pattern is an important mode of climate variability in the mid-to-high southern latitudes.   We take a novel approach to quantifying the combined influence of ZW1 and ZW3, using the strength of the hemispheric meridional flow as a proxy for zonal wave activity. Our methodology adapts the wave envelope construct routinely used in the identification of synoptic-scale Rossby wave packets and improves on existing approaches by allowing for variations in both wave phase and amplitude.