Spatial correlation between MXD regional chronology and MEI parameters.
Spatial correlation between fields of MXD regional chronology and 2.5° × 2.5° gridded monthly average (December–February) of sea surface temperature (SST), sea level pressure (SLP), surface air temperature (SAT), 250 hPa zonal wind (U250), and 250 hPa meridional wind (V250), for the period 1948–2011. Correlation values are shown by color scale. Data were obtained from the National Oceanic and Atmospheric Administration website (www.esrl.noaa.gov/psd/data/correlation). Study area is indicated by a black star. 3.4 Niño region is represented by a red rectangle. Significant correlation at 90%; confidence level is r = 0.20.
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