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A combination of laser technology and fractals to analyse soil surface roughness
Author(s) -
Pardini,
Francesc Gallart
Publication year - 1998
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 - 10.1046/j.1365-2389.1998.00149.x
Subject(s) - fractal dimension , surface finish , surface roughness , fractal , scale (ratio) , linear regression , surface (topology) , standard deviation , metre , laser , measure (data warehouse) , mineralogy , materials science , geology , optics , mathematics , geometry , composite material , statistics , computer science , physics , mathematical analysis , quantum mechanics , astronomy , database
Laboratory experiments were conducted on artificially weathered mudrocks (i) to measure changes in the roughness following cycles of freezing and thawing, and (ii) to find a simple method to calculate roughness as an alternative method to standard deviation methods. Surface roughness was measured with a laser profile meter and the resulting measurements were analysed by a program written for the purpose. The analysis is based on calculation of the fractal dimension of the profile for selected ranges of scale, and estimated by linear regression. Results revealed distinct micro‐ and macrotopographic variations of artificially weathered surface samples.