Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/77125
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Type: Conference paper
Title: The edge effect in geostatistical simulations
Author: Xu, C.
Dowd, P.
Citation: Proceedings of the Ninth Geostatistics Conference, held in Oslo, 11-15 June, 2012 / P. Abrahamsen, R. Hauge and O. Kolbjørnsen (eds.): pp.115-127
Publisher: Springer
Publisher Place: Netherlands
Issue Date: 2012
Series/Report no.: Quantitative Geology and Geostatistics; 17
ISBN: 9789400741522
Conference Name: International Geostatistics Congress (9th : 2012 : Oslo)
Statement of
Responsibility: 
Chaoshui Xu and Peter A. Dowd
Abstract: The problem of edge effects in sequential simulation is widely acknowledged but usually overlooked in geostatistical simulations. They can, however, have significant effects on simulations, especially for situations in which the variogram range is relatively large compared to the size of the simulation area (volume). Failure to account properly for the issue can bias simulations by generating values with ranges of correlation and statistical characteristics that differ from those specified. In this paper, we investigate edge effects in detail using sequential Gaussian simulations and derive the critical threshold at which an edge effect becomes significant. Edge correction techniques, such as guard areas, are discussed as a means of mitigating the effects.
Rights: © Springer Science+Business Media Dordrecht 2012
RMID: 0020125424
DOI: 10.1007/978-94-007-4153-9_10
Appears in Collections:Civil and Environmental Engineering publications

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