Correcting the Smoothing Effect of Ordinary Kriging Estimates
Author: Yamamoto, Jorge
Source: Mathematical Geology, Volume 37, Number 1, January 2005 , pp. 69-94(26)
Abstract:The smoothing effect of ordinary kriging is a well-known dangerous effect associated with this estimation technique. Consequently kriging estimates do not reproduce both histogram and semivariogram model of sample data. A four-step procedure for correcting the smoothing effect of ordinary kriging estimates is shown to be efficient for the reproduction of histogram and semivariogram without loss of local accuracy. Furthermore, this procedure provides a unique map sharing both local and global accuracies. Ordinary kriging with a proper correction for smoothing effect can be revitalized as a reliable estimation method that allows a better use of the available information.
Document Type: Research Article
Affiliations: Department of Environmental and Sedimentary Geology, Institute of Geosciences, University of Sao Paulo, Rua do Lago, 562, CEP 05.508-900, Sao Paulo, SP, Brazil, Email: email@example.com
Publication date: January 1, 2005