Evaluation of Different Soil Salinity Mapping Using Remote Sensing Techniques in Arid Ecosystems, Saudi Arabia

Table 3

Evaluation of different interpolation kernels function.

	Kernel function
	Exponential	Gaussian	Quartic	Epanechnikov	Polynomial-5	Constant
Regression function
Mean	1383	1421	1378	1412	1355	1428
Root mean square	4251	4257	4250	4257	4253	4266
Mean standardized	0.0065	0.0067	0.0065	0.0066	0.0064	0.0067
Root mean square standardized	0.0201	0.0201	0.0202	0.0201	0.0202	0.0200
Average standard error	211114	211797	210334	211526	209641	212674