Drainage basin sensitivity to tectonic and climatic forcing : implications of a stochastic model for the role of entrainment and erosion thresholds

Auteur :
TUCKER, G.E.

Description :
The A. describes a stochastic model for modelling long-term sediment transport and erosion rates that (a) incorporates an erosion threshold, and (b) captures the integrated effects of a spectrum of runoff events. Solutions are derived and numerically tested for 3 erosion/transport formulas : The Howard-Kerby shear-stress incision model, the Bridge-Domininic sediment transport model, and a generic shear-stress sediment transport model. Results imply that non-linearity resulting from threshold effects can have a first-order impact on topography and patterns of dynamic response to tectonic and climate forcing.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2004, vol. 29, n°. 2, p. 185-205, nombre de pages : 21, Collation : Illustration, Références bibliographiques : 55 ref.

Date :
2004

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley