The Dependence of Northwest Pacific Tropical Cyclone Intensification Rates on Environmental Factors

Table 2

Significant differences between the three intensification categories.

Environmental factors	RI and NI	RI and SI	SI and NI
Deep-layer VWS
Upper-mid VWS
Mid-low VWS
Low-level VWS	×
Net moisture inflow	×
Upper-level outflow
SST
OHC

and denote significant differences with 95% and 90% confidence intervals, respectively. × shows that no significant difference exists.