Hillslope response to tectonic forcing in threshold landscapes

Auteur(s) et Affiliation(s)

DIBIASE, R.A.

School of Earth and Space Exploration, Arizona State Univ., Tempe, Etats-Unis

Div. of Geological and Planetary Sciences, California Inst. of Technology, Pasadena, Etats-Unis

HEIMSATH, A.M.

School of Earth and Space Exploration, Arizona State Univ., Tempe, Etats-Unis

WHIPPLE, K.X.

School of Earth and Space Exploration, Arizona State Univ., Tempe, Etats-Unis

Description :
Here the AA. quantify hillslope response to tectonic across a threshold landscape in the San gabriel Mountains, California, using an 1 m resolution, LiDAR-derived digital elevation model, high resolution panoramic photographs, and cosmogenic beryllium-10 derived catchment erosion rates. Two distinct trends in hillslope behavior emerge : below and above catchment-mean slopes of 30°. Their results reveal important textural details lost in 10 or 30 m resolution digital elevation models of steep landscapes, and highlight the need for process-based studies of threshold hillslopes and colluvial channels.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2012, vol. 37, n°. 8, p. 855-865, nombre de pages : 11, Références bibliographiques : 1 p.

Date :
2012

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

Langue :
Anglais