The Effect of Spatial Heterogeneities on Geomorphic Expression in a Model of Basin Evolution

The Effect of Spatial Heterogeneities on Geomorphic Expression in a Model of Basin Evolution Spatial variability is a basic component of all natural systems. The system being studied here is the topography of an evolving drainage basin. Spatially heterogeneous erosivity within the drainage basin influences the structure of the drainage network, the roughness of small‐scale features, and the overall appearance of the simulated topography. The presence of heterogeneities does not simply blur and smear analytical relationships. The heterogeneities themselves introduce new structure to the organization of the drainage basin. Three measures, the slope‐area relationship, the cumulative area relationship, and the hypsometric distribution, are all systematically affected by spatial heterogeneity. We will demonstrate how and why these relationships are affected and also how different structures in the heterogeneities themselves are manifested in the resulting simulated topography. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Water Resources Research Wiley

The Effect of Spatial Heterogeneities on Geomorphic Expression in a Model of Basin Evolution

Water Resources Research, Volume 31 (10) – Oct 1, 1995

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Publisher
Wiley
Copyright
Copyright © 1995 by the American Geophysical Union.
ISSN
0043-1397
eISSN
1944-7973
D.O.I.
10.1029/95WR02036
Publisher site
See Article on Publisher Site

Abstract

Spatial variability is a basic component of all natural systems. The system being studied here is the topography of an evolving drainage basin. Spatially heterogeneous erosivity within the drainage basin influences the structure of the drainage network, the roughness of small‐scale features, and the overall appearance of the simulated topography. The presence of heterogeneities does not simply blur and smear analytical relationships. The heterogeneities themselves introduce new structure to the organization of the drainage basin. Three measures, the slope‐area relationship, the cumulative area relationship, and the hypsometric distribution, are all systematically affected by spatial heterogeneity. We will demonstrate how and why these relationships are affected and also how different structures in the heterogeneities themselves are manifested in the resulting simulated topography.

Journal

Water Resources ResearchWiley

Published: Oct 1, 1995

References

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