Satellite-Based Assessment of Various Cloud Microphysics Schemes in Simulating Typhoon Hydrometeors

Table 1

Particle-size distribution (PSD) and density assumptions for precipitation hydrometeor species.

Scheme (# of moments)	PSD								Bulk density (kg·m^−3)
					Nox (m^−1·m^−3)
	Ra	Sn	Gr	Ha	Ra	Sn	Gr	Ha	Ra	Sn	Gr	Ha
WSM6 (1)	0	0	0	—	8 × 10^6	Nos (T)	4 × 10^6	—	1000	100	500	—
GSFC (1)	0	0	0	—	8 × 10^6	1.6 × 10^7	4 × 10^6	—	1000	100	400	—
THOM (half 2)	0	NA	0	—	N0r (T)	NA	N0g(T)	—	1000	not a const	400	—
MORR (2)	0	0	0	—	N0r (n, q)	N0s (n, q)	N0g (n, q)	—	997	100	400	—
NSSL (2)	0	NA	0	2	NA	NA	NA	NA	1000	100	300–900 predicted	500–900 predicted

is the shape factor for the gamma function; N_o is the intercept parameter; NA indicates not available; Ra, Sn, Gr, and Ha stand for rain, snow, graupel, and hail, respectively.