GEOGRAPHICAL RESEARCH

Adaptive IDW interpolation method and its application in the temperature field

Ping DUAN, Yehua SHENG, Jia LI, Haiyang LV, Siyang ZHANG

GEOGRAPHICAL RESEARCH, 2014, 33(8): 1417-1426. DOI: 10.11821/dlyj201408003

插值方法	ε_max	ε_min	ε_me	ε_rmse	时间(s)
IDW/点数固定	4.7040E-02	-3.9979E-02	1.4654E-04	8.1831E-03	1.9661E-01
IDW/半径固定	4.4330E-02	-3.9197E-02	1.0089E-04	7.8569E-03	1.0591E-01
NNI	5.2840E-02	-6.7897E-02	-2.2281E-04	4.3300E-03	5.9657E+00
AIDW	2.5195E-02	-2.8181E-02	1.0064E-04	5.2229E-03	1.0079E-01

Tab. 3 Interpolation error statistics of 2000 sampling points and 1000 interpolation points

Other figure/table from this article

Fig.1 The search strategy
Fig.2 Flow chart of the AIDW
Fig. 3 The regular grid index
Fig. 4 Selections of the first order natural neighbors
Fig.5 Franke surface <![CDATA[(2)]]>
Tab. 1 Interpolation error statistics of 500 sampling points and 1000 interpolation points
Tab. 2 Interpolation error statistics of 1000 sampling points and 1000 interpolation points
Tab. 4 Interpolation error statistics of 5000 sampling points and 1000 interpolation points
Tab.5 Interpolation error statistics of 10000 sampling points and 1000 interpolation points
Tab. 6 Interpolation error statistics of 20000 sampling points and 1000 interpolation points
Fig.6 Spatial distribution of the data
Tab.7 The error statistics of interpolation methods (^oC)
Fig. 7 Comparison of interpolation results