Research Article

Synoptic-Scale Precursors to Tropical Cyclone Rapid Intensification in the Atlantic Basin

Figure 9

Divergence (s−1) at 200 hPa cluster 3 RI (panel (a)) and non-RI (panel (b)) and the resulting differences in the permutation test of the fields (panel (c): shaded areas are significant at or less). The value fields reveal that areas of statistical significance are shifted left of the storm center.
(a)
(b)
(c)