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	1.0165E-01	-7.6662E-02	1.1487E-03	1.8337E-02	9.1131E-02
IDW/半径固定	1.1327E-01	-9.5031E-02	-	-	5.9191E-02
NNI	8.5239E-02	-1.0396E-01	-1.1884E-03	1.1155E-02	1.3415E+00
AIDW	6.7655E-02	-6.2278E-02	1.0564E-04	1.2819E-02	1.4808E-01

Tab. 1 Interpolation error statistics of 500 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. 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. 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