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	6.7154E-02	-5.2808E-02	8.7642E-04	1.1987E-02	1.2359E-01
IDW/半径固定	7.2202E-02	-6.4808E-02	-	-	9.8902E-02
NNI	6.4723E-02	-8.3556E-02	-4.6503E-04	6.8004E-03	2.8475E+00
AIDW	3.8223E-02	-4.1399E-02	3.7022E-04	8.2223E-03	2.9629E-01

Tab. 2 Interpolation error statistics of 1000 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. 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