Characteristics of Raindrop Size Distribution in Typhoon Nida (2016) before and after Landfall in Southern China from 2D Video Disdrometer Data

Table 1

Mean of rain rate R (mm h⁻¹), radar reflectivity Z (dBZ), mass-weighted mean diameter D_m (mm), logarithmic normalized intercept parameter (mm⁻¹ m⁻³), and the maximum diameter D_max (mm) at different rain rate classes before and after landfall.

Segment	Parameters	Rain rate classes (mm h^−1)
		All classes	0.1–1	1–5	5–10	10–20	20–30	30–40	40–50	>50
Before landfall	Numbers	186	77 (41.40%)	82 (44.09%)	15 (8.06%)	8 (4.30%)	4 (2.15%)	—	—	—
	R	2.91	0.40	2.38	6.87	13.79	25.58	—	—	—
	Z	24.68	17.34	27.97	33.22	37.87	40.42	—	—	—
	Dm	1.19	1.03	1.27	1.31	1.47	1.44	—	—	—
		3.56	3.27	3.64	4.05	4.12	4.41	—	—	—
	Dmax	4.1	4.1	3.9	2.3	2.1	1.5
After landfall	Numbers	610	186 (30.49%)	191 (31.31%)	126 (20.66%)	65 (10.66%)	26 (4.26%)	7 (1.15%)	4 (0.65%)	5 (0.82%)
	R	6.12	0.45	2.56	6.96	14.72	24.02	34.64	42.49	58.74
	Z	28.06	17.49	27.83	33.98	38.14	41.05	43.89	44.23	46.72
	Dm	1.20	0.95	1.20	1.33	1.43	1.51	1.67	1.59	1.71
		3.84	3.50	3.80	4.04	4.21	4.31	4.27	4.46	4.46
	Dmax	4.3	4.1	4.3	4.3	3.7	3.7	2.3	1.9	2.7