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(Article of periodic en Anglais - 2009)

Document title

Effects of terrain smoothing on topographic shielding correction factors for cosmogenic nuclide-derived estimates of basin-averaged denudation rates

Authors(s) and Affiliation(s)

NORTON K.P. (1) ; VANACKER V. (2) ;
(1) Leibniz Univ, Inst. for Mineralogy, Hannover, ALLEMAGNE
(2) Univ. of Louvain, Dep. of Geography, Louvain-la-Neuve, BELGIQUE

Abstract

One important issue that has yet to be addressed is the effect of the accuracy and resolution of terrain representation by a digital elevation model (DEM) on topographic shielding correction factors. Topographic metrics scale with the resolution of the elevation data, and terrain smoothing has a potentially large effect on the correction of terrestrial cosmogenic nuclide production rates for skyline shielding. For rough, high-relief landscapes, the effect of terrain smoothing can easily exceed analytical errors, and should be taken into account. Here the AA. demonstrate the effect of terrain smoothing on topographic shielding correction factors for various topographic settings, and introduce an empirical model for the estimation of topographic shielding factors based on landscape metrics

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2009, vol. 34, no1 [pp. 145-154]

Bibliographic references : 1 p.

Collation : 9 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1700

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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