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PORTAIL D'INFORMATION GÉOGRAPHIQUE

The land surface is not unifractal : variograms, cirque scale and allometry

Advances in geomorphometry. Proceedings of the Walter F. Wood memorial symposium

Auteurs :
EVANS, I.S.
MCCLEAN, C.J.
PIKE, R.

Description :
Earth's surface, fashioned by multiple processes operating over different timescales, has more than 5 statistical dimensions of variability. Two-parameter spectral or unifractal models can at best only provide approximations which may serve as initial surfaces and nul hypotheses. Much of the interest of geomorphology, however, lies in deviations from such models - in scale specificity, allometry, lineation, structuring and non-invertibility. Multifractal models hold much promise, but must be more complex before simulating terrain that is realistic in these respects.


Type de document :
Congrès

Source :
Symposium, International Conference on Geomorphology, 3, Hamilton, Canada, 1993-08-23, Zeitschrift für Geomorphologie. Supplementband, issn : 0044-2798, 1995, n°. 101, p. 127-147, Collation : Illustration, Références bibliographiques : 62 ref.

Date :
1995

Editeur :
Pays édition : Allemagne, Berlin ; Stuttgart, Borntraeger

Langue :
Anglais
Droits :
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