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	2.9507E-02	-2.4713E-02	9.9800E-05	5.0458E-03	4.5276E-01
IDW/半径固定	3.1048E-02	-2.3046E-02	8.8139E-05	4.8384E-03	3.3553E-01
NNI	3.8267E-02	-3.5618E-02	-9.7021E-05	2.4240E-03	1.5587E+01
AIDW	1.7637E-02	-1.6134E-02	-1.4573E-07	3.0991E-03	2.0731E-01

Tab. 4 Interpolation error statistics of 5000 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. 3 Interpolation error statistics of 2000 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