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(Article of periodic en Anglais - 2013)

Document title

The geomorphometry of endorheic drainage basins : implications for interpreting and modelling their evolution

Authors(s) and Affiliation(s)

DORSAZ J.-M. (1 2 3) ; GIRONÁS J. (1 4) ; ESCAURIAZA C. (1 4) ; RINALDO A. (2 5) ;
(1) Dep. de Ingeniería Hidráulica Ambiental, Pontificia Univ. Católica de Chile, Santiago, CHILI
(2) School of Architecture, Civil and Environmental Engineering, Ecole Polytechnique Fédérale, Lausanne, SUISSE
(3) GeoHidrología Consultores, CHILI
(4) Centro Nacional de Investigación para la Gestión Integrada de Desastres Naturales (CIGIDEN), CHILI
(5) Dip. IMAGE, Univ. degli Studi di Padova, Padua, ITALIE

Abstract

The aim of this study is to better understand the basin morphology of endorheic river basins by using well-known geomorphological properties and their variations across scales. For 3 basins in northern Chile the AA. computed the following descriptors and the corresponding relevant scales : the cumulative distribution of contributing area, the horizontal shape of the basins (i.e. Hack's law, normalized Euclidean length, and sinuosity of the streams), slope–area relationship, Horton's ratios and drainage density. They detected several properties typically found in open basins, but certain features which seem to be unique to closed basins were also identified. In particular, they found that horizontal and vertical geomorphic features seem to be linked, which suggests that an independent treatment of these features may not be appropriate for closed basins. Similar results were found regardless of the basin area, which illustrates the relevant effects of features that are specific to these particular regions

Source

Article of periodic

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

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

Millesime : 2013, vol. 38, no15 [pp. 1881-1896]

Bibliographic references : 2 p.

Collation : 12 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3475

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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