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Table 5

A list of some combinations of the different input variables for models

Model	Input variables	R²	RMSE
1	P, T_mean, RH, FD, E7, Snow_Year, P_Autumn, P_Winter	0.75	0.131
2	P, T_mean, RH, FD, E7, P_Autumn, P_Winter	0.73	0.132
3	P, T_mean, RH, FD, E7, P_Autumn, P_Winter, Snow/P_Spring	0.78	0.123
4	P, T_mean, RH, FD, Snow_Spring, P_Autumn, P_Winter	0.74	0.130
5	P, T_mean, RH, FD, Snow/P_Spring, P_Autumn, P_Winter	0.78	0.120
6	P, T_mean, RH, FD, Snow/P_Spring, P_Autumn	0.78	0.117
7	T_mean, RH, FD, Snow/P_Spring, P_Autumn	0.76	0.120
8	P, T_mean, T_max, T_min, RH, FD	0.74	0.124
9	P, T_mean, T_max, T_min, RH, FD, E7, Snow_Year, Snow/P_Spring, T_mean-Winter, T_max-Winter	0.90	0.126
10	P, T_mean, T_max, T_min, RH, FD, E7, Snow_Year, T_min-Winter, T_max-Winter, P_Autumn, P_Winter	0.81	0.134

Model	Input variables	R²	RMSE
1	P, T_mean, RH, FD, E7, Snow_Year, P_Autumn, P_Winter	0.75	0.131
2	P, T_mean, RH, FD, E7, P_Autumn, P_Winter	0.73	0.132
3	P, T_mean, RH, FD, E7, P_Autumn, P_Winter, Snow/P_Spring	0.78	0.123
4	P, T_mean, RH, FD, Snow_Spring, P_Autumn, P_Winter	0.74	0.130
5	P, T_mean, RH, FD, Snow/P_Spring, P_Autumn, P_Winter	0.78	0.120
6	P, T_mean, RH, FD, Snow/P_Spring, P_Autumn	0.78	0.117
7	T_mean, RH, FD, Snow/P_Spring, P_Autumn	0.76	0.120
8	P, T_mean, T_max, T_min, RH, FD	0.74	0.124
9	P, T_mean, T_max, T_min, RH, FD, E7, Snow_Year, Snow/P_Spring, T_mean-Winter, T_max-Winter	0.90	0.126
10	P, T_mean, T_max, T_min, RH, FD, E7, Snow_Year, T_min-Winter, T_max-Winter, P_Autumn, P_Winter	0.81	0.134

Note: E7 is the sum of evaporation in seven months (April–October). Variables that are underlined did not have logical coefficient.