A Comparison of Southern Hemisphere Cyclone Track Climatology and Interannual Variability in Coarse-Gridded Reanalysis Datasets
SH Winter (JAS) AAO positive-AAO negative cyclone track frequency composite for (a) NCEP1_5801, (b) like “a” but for ERA40_5801. Units: number of cyclones. Hatched areas are significant at 90% for 2-tailed -test. (c) SH Winter (JAS) IOD positive-IOD negative cyclone track intensity composite for NCEP1_5801, (d) like “c” but for ERA40_5801. Units: hPa. Hatched areas are significant at 90% for 2-tailed -test.
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