Assessing the Return Periods and Hydroclimatic Parameters for Rainwater Drainage in the Coastal City of Cotonou in Benin under Climate Variability

Table 7

Performance criteria used to compare the Montana and Talbot models for different return periods.

Return period (year)	Performance criteria
	R ^2		RMSE
	Montana	Talbot	Montana	Talbot
2	0.9915	0.9998	2.4247	0.268
5	0.9913	1.0000	3.1823	0.158
10	0.9907	1.0000	3.6551	0.18
20	0.9902	1.0000	4.1899	0.144
40	0.9894	1.0000	4.792	0.158
50	0.9894	1.0000	4.9534	0.129
100	0.9887	1.0000	5.5477	0.13

RMSE stands for root mean square error.