ul 2004 
5. CONCLUSION 
In this paper we compare 12 different interpolation 
methods. For each method, we analyze its 
applicability, algorithm, efficiency and advantage. 
There is no absolutely best method but only the 
optimal choice under certain circumstances. One 
should first review the characteristic and theorem of 
each method as well as the property and spatial 
analysis of data before he or she can successfully 
select a spatial interpolation method which is 
relatively best in certain situation. However, the 
outcome should be evaluated by conscientious 
experiences. 
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