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

Table 3

Variables chosen for composite analysis.

Variable	Level(s)	References
	(hPa)
MSLP	1000	[8, 9, 20–23]
Temperature including skin temperature	1000–200	[9, 20, 21, 24–29]
Potential temperature	1000–200	[20, 30, 31]
Pressure vertical velocity	1000–200	[20–22, 27–29, 32]
and winds	1000–200	[3, 8, 9, 30, 31]
Vertical shear	200–850	[3, 4, 9, 25–27, 32, 33]
Specific humidity	1000–200	[8, 9, 20, 23, 27, 29, 31]
Vorticity	700–200	[8, 21, 26–29]
Divergence	200	[3, 8, 20, 22, 27–29, 32, 34]