A Spatial Interpolation of Meteorological Parameters considering Geographic Semantics

Table 7

Comparison of interpolation accuracy of 5 kinds of interpolation methods on Apr. 17, 2018.

Study area	Forecasting methods	Forecast time	Apr. 17, 2018
		RMSE	MAE	MAPE (%)	RVAR
Study area-1	S-IDW	1.295	1.090	0.514	0.640
	IDW	1.668	1.383	3.329	0.651
	Kriging	1.959	1.686	0.901	0.497
	Natural	1.886	1.578	0.278	0.763
	Spline	1.891	1.504	1.981	1.127