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	2.0089E-02	-2.0537E-02	4.6727E-05	3.5117E-03	8.1887E-01
IDW/半径固定	2.4847E-02	-1.5791E-02	6.8011E-05	3.4972E-03	1.9138E-01
NNI	3.0395E-02	-7.8220E-03	-2.5906E-05	1.2156E-03	3.3864E+01
AIDW	1.1890E-02	-1.1242E-02	7.7898E-06	2.0983E-03	1.3803E-01

Tab.5 Interpolation error statistics of 10000 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. 4 Interpolation error statistics of 5000 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