Comparative Analysis of Global Solar Radiation Models in Different Regions of China

Table 5

Statistics performances of the 12 models in estimating global solar radiation in Eastern China.

Stations	Evaluation index	AP	OG	Jin	BA	LO	GM	EM	AH	DL	HS	AN	BC
Jinan
	RMSE	2.565	2.565	2.558	2.491	2.570	2.523	2.569	2.679	2.456	4.828	4.828	4.592
	RRMSE	18.0	18.0	18.0	17.5	18.0	17.7	18.0	18.8	17.2	33.9	33.9	32.2
	NS	0.876	0.876	0.877	0.883	0.875	0.880	0.876	0.865	0.886	0.561	0.561	0.603
	MAE	1.971	1.978	1.965	1.894	1.977	1.931	1.975	2.049	1.867	3.904	3.904	3.578
Nanchang
	RMSE	2.507	2.449	2.507	2.384	2.506	2.504	2.508	2.725	2.506	5.190	5.190	4.438
	RRMSE	20.2	19.8	20.2	19.2	20.2	20.2	20.3	22.0	20.2	41.9	41.9	35.8
	NS	0.896	0.901	0.896	0.906	0.897	0.897	0.896	0.878	0.897	0.556	0.556	0.675
	MAE	1.825	1.800	1.825	1.702	1.824	1.823	1.825	2.039	1.824	4.152	4.152	3.238
Shanghai
	RMSE	2.410	2.177	2.417	2.100	2.455	2.413	2.413	2.754	2.414	4.929	4.928	4.715
	RRMSE	18.8	17.0	18.8	16.4	19.1	18.8	18.8	21.5	18.8	38.4	38.4	36.8
	NS	0.888	0.908	0.887	0.915	0.884	0.888	0.888	0.854	0.888	0.531	0.531	0.571
	MAE	1.859	1.658	1.864	1.594	1.894	1.861	1.861	2.171	1.862	3.973	3.970	3.680
Average
	RMSE	2.494	2.397	2.494	2.325	2.510	2.480	2.497	2.720	2.458	4.982	4.982	4.582
	RRMSE	19.0	18.3	19.0	17.7	19.1	18.9	19.0	20.8	18.8	38.1	38.1	34.9
	NS	0.887	0.895	0.887	0.901	0.885	0.888	0.887	0.865	0.890	0.549	0.549	0.616
	MAE	1.885	1.812	1.885	1.730	1.898	1.872	1.887	2.086	1.851	4.010	4.009	3.499
	GPI	0.002	0.160	0.002	0.284	−0.021	0.022	−0.002	−0.388	0.053	−4.716	−4.715	−3.838
	Rank	5	2	6	1	8	4	7	9	3	12	11	10