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(Article of periodic en Anglais - 2010)

Document title

The topographic imprint of a transient climate episode : the western Andean flank between 15.5° and 41.5°

Authors(s) and Affiliation(s)

REHAK K. (1 2) ; BOOKHAGEN B. (3 4) ; STRECKER M.R. (1) ; ECHTLER H.P. (1 5) ;
(1) Inst. für Geowissenchaften, Univ., Potsdam, ALLEMAGNE
(2) Helmholtz Association, Berlin, ALLEMAGNE
(3) Dep. of Geological and Environmental Sciences, Univ. California, Stanford, ETATS-UNIS
(4) Dep. of Geography, Univ. of California, Santa Barbara, ETATS-UNIS
(5) GFZ Potsdam, Dep. Geodäsie und Fernerkundung, Potsdam, ALLEMAGNE

Abstract

The AA. present an analysis of 120 catchments along the western Andean watersheds between 15·5° and 41·5°S, which is based on SRTMV3-90m data and new medium-resolution rainfall, tropical rainfall measurement mission (TRMM) dataset. For each basin, they extracted geometry, relief, and climate parameters to test whether Andean topography shows a climatic imprint and to analyze how climate influences relief. The AA. distinguish 2 different, climatically-controlled mechanisms shaping topography: (1) fluvial erosion by prolonged channel-hillslope coupling, which smoothes relief, and (2) erosion by valley glaciers that generates relief. Finally, their results suggests that the catchment-scale relief of the Andes between 28°S to 35°S is characterized by a pronounced transient component reflecting past climatic conditions

Source

Article of periodic

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

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

Millesime : 2010, vol. 35, no13 [pp. 1516-1534]

Bibliographic references : 3 p.

Collation : 6 fig., 2 tabl., app.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.1992

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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