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|Title:||IRFK2D: a computer program for simulating intrinsic random functions of order k|
|Citation:||Computers & Geosciences, 2003; 29(6):753-759|
|Publisher:||Pergamon-Elsevier Science Ltd|
|Eulogio Pardo-Igúzquiza and Peter A. Dowd|
|Abstract:||IRFK2D is an ANSI Fortran-77 program that generates realizations of an intrinsic function of order k (with k equal to 0, 1 or 2) with a permissible polynomial generalized covariance model. The realizations may be non-conditional or conditioned to the experimental data. The turning bands method is used to generate realizations in 2D and 3D from simulations of an intrinsic random function of order k along lines that span the 2D or 3D space. The program generates two output files, the first containing the simulated values and the second containing the theoretical generalized variogram for different directions together with the theoretical model. The experimental variogram is calculated from the simulated values while the theoretical variogram is the specified generalized covariance model. The generalized variogram is used to assess the quality of the simulation as measured by the extent to which the generalized covariance is reproduced by the simulation. The examples given in this paper indicate that IRFK2D is an efficient implementation of the methodology.|
|Keywords:||Geostatistical simulation; Polynomial generalized covariance; Allowable linear combinations; Generalized variogram; Turning bands operator|
|Description:||Copyright © 2003 Elsevier Science Ltd|
|Appears in Collections:||Civil and Environmental Engineering publications|
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