Estimation of Solar Insolation and Angstrom–Prescott Coefficients Using Sunshine Hours over Nepal

Table 3

Statistical errors for fifteen meteorological stations.

Location	Altitude masl	r	RMSE (MJ/m^2/day)	MBE (MJ/m^2/day)	MPE (%)	CRM
Tikapur	149	0.879	2.697	−0.133	3.964	0.008
Nepalgunj	150	0.969	1.344	−0.096	1.272	0.006
Kankai	300	0.840	2.413	0.005	2.053	0.000
Dharan	310	0.933	1.464	−0.070	1.278	0.004
Dipayal	662	0.923	1.758	0.071	3.344	0.005
Dhunibesi	1085	0.906	2.363	−0.161	4.291	0.011
Darchula	1097	0.962	1.583	0.108	5.179	0.007
Pulchowk	1320	0.921	1.577	−0.034	1.236	0.002
Khumaltar	1350	0.891	2.109	−0.109	2.068	0.007
Ilam	1570	0.926	1.872	0.064	4.405	0.005
Okhaldhunga	1720	0.755	3.418	0.165	7.746	0.011
Lumle	1740	0.946	1.454	0.021	1.403	0.001
Jiri	1877	0.850	2.343	0.046	4.565	0.003
Musikot	2100	0.956	1.411	−0.085	0.645	0.005
Jumla	2383	0.972	1.410	−0.068	1.146	0.004
Average		0.909	1.948	−0.018	2.973	0.001