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Modelling surface roughness by a Boolean approach
Author(s) -
BERTUZZI P.,
GARCIASANCHEZ L.,
CHADOEUF J.,
GUERIF J.,
GOULARD M.,
MONESTIEZ P.
Publication year - 1995
Publication title -
european journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 1351-0754
DOI - 10.1111/j.1365-2389.1995.tb01829.x
Subject(s) - radius , intensity (physics) , surface finish , function (biology) , plane (geometry) , surface (topology) , surface roughness , boolean model , distribution (mathematics) , distribution function , geometry , mathematics , physics , materials science , mathematical analysis , optics , statistics , computer science , thermodynamics , computer security , evolutionary biology , composite material , biology
Summary A model for simulating surface roughness of an agricultural bare soil is described. The model used a random Boolean function. The primary function was a sphere with radius r lying on a plane. The intensity function, a(r) , of the distribution of the sphere radius was described by a(r) =αrβ exp(λr) Microtopography data were collected during two sets of field experiments. The distribution of experimental heights was used for fitting the three parameters, (α, β, λ) of the intensity function a(r ) with a pseudo‐likelihood method. Comparisons between experimental and simulated soil surfaces indicated that the simulated roughness was not unrealistic. However, they also showed that the model is currently limited by the primary function and the intensity function that were chosen.