A Poisson Cluster Stochastic Rainfall Generator That Accounts for the Interannual Variability of Rainfall Statistics: Validation at Various Geographic Locations across the United States

Table 1

Performance comparison between THM and the traditional approach in reproducing design rainfall values.

Recurrence interval	Type of statistic	THM			Traditional approach
		1 hours	3 hours	6 hours	1 hour	3 hours	6 hours
100 years	Mean	0.058	0.022	−0.035	−0.157	−0.162	−0.189
	Standard deviation	0.310	0.296	0.234	0.210	0.193	0.157
	Within ±20%	0.640	0.710	0.730	0.522	0.522	0.441
50 years	Mean	0.097	0.046	−0.019	−0.127	−0.143	−0.168
	Standard deviation	0.261	0.240	0.191	0.182	0.164	0.140
	Within ±20%	0.670	0.790	0.800	0.610	0.596	0.515
30 years	Mean	0.129	0.065	−0.006	−0.101	−0.126	−0.150
	Standard deviation	0.233	0.210	0.168	0.172	0.152	0.136
	Within ±20%	0.700	0.810	0.860	0.684	0.684	0.610