The Proportional Effect

Autor: Johnathan G. Manchuk, Clayton V. Deutsch, Oy Leuangthong
Rok vydání: 2008
Předmět:
Zdroj: Mathematical Geosciences. 41:799-816
ISSN: 1874-8953
1874-8961
Popis: Many regionalized variables encountered in geostatistical application show a proportional effect, that is, greater variability in high valued areas. The proportional effect is a consequence of the univariate distribution of the variable being considered. This presents several challenges including inference of variograms and conditional distributions. The correlogram and relative variogram were devised to mitigate challenges with variography. Other techniques such as normalization, direct simulation, and indicators provide a means to characterize conditional distributions. A review of these tools is given along with several examples to provide an explanation of the proportional effect.
Databáze: OpenAIRE
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