The importance of spatially heterogeneous erosivity and the cumulative area distribution within a basin evolution model

The importance of spatially heterogeneous erosivity and the cumulative area distribution within a... Topography reflects the terrain composition and the forces to which it is exposed. The elements that control this shape are intuitive: precipitation, wind, soil composition, geologic activity, lithology, and vegetation. Each of these elements varies naturally in space. A model of basin evolution is shown to produce quantitatively different topography for different relative magnitudes of diffusive and incisive erosion processes. Spatial heterogeneities in erosivity also influence the simulated topography. The calibration of this evolution model is compared to observed topography. The calibration process ultimately hinges on quantification of the aggregation pattern of the basin through analysis of the cumulative area distribution. The effect of spatially heterogeneous erosivity is shown to be crucially important to reproduce the cumulative area distribution of observed topography. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Geomorphology Elsevier

The importance of spatially heterogeneous erosivity and the cumulative area distribution within a basin evolution model

Geomorphology, Volume 12 (3) – Jun 1, 1995

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Publisher
Elsevier
Copyright
Copyright © 1995 Elsevier Ltd
ISSN
0169-555X
eISSN
1872-695X
D.O.I.
10.1016/0169-555X(95)00003-N
Publisher site
See Article on Publisher Site

Abstract

Topography reflects the terrain composition and the forces to which it is exposed. The elements that control this shape are intuitive: precipitation, wind, soil composition, geologic activity, lithology, and vegetation. Each of these elements varies naturally in space. A model of basin evolution is shown to produce quantitatively different topography for different relative magnitudes of diffusive and incisive erosion processes. Spatial heterogeneities in erosivity also influence the simulated topography. The calibration of this evolution model is compared to observed topography. The calibration process ultimately hinges on quantification of the aggregation pattern of the basin through analysis of the cumulative area distribution. The effect of spatially heterogeneous erosivity is shown to be crucially important to reproduce the cumulative area distribution of observed topography.

Journal

GeomorphologyElsevier

Published: Jun 1, 1995

References

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