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(Article of periodic en Anglais - 2011)

Document title

Are Ozark streams underfit? Using GIS to re-examine Dury's Theory of underfit Streams

Authors(s) and Affiliation(s)

SHEPHERD S.L. (1) ; DIXON J.C. (2) ; DAVIS R.K. (2) ;
(1) Environmental Dynamics Program, Univ. of Arkansas, Fayetteville, ETATS-UNIS
(2) Dep. of Geosciences, Univ. of Arkansas, Fayetteville, ETATS-UNIS

Abstract

Dury developed mathematical relationships between the valley meander wavelength and the stream meander wavelength to define the underfit condition. This study uses modern analytical techniques and data sets to test these mathematical relationships both for watersheds used in Dury's original study and for other watersheds in the region. Using GIS-based analysis of digital raster graphics, digital elevation models, and U.S. Geological Survey hydrology data, the AA. could not replicate Dury's results. The theory of underfit streams fails to explain the great variability of data derived in this analysis. In fact, this study suggests that structural controls have a greater influence on modern valley architecture than hydrologic controls

Source

Article of periodic

published at : Physical geography / ISSN 0272-3646

Editor : Taylor & Francis, Abingdon - ROYAUME-UNI (1980)

Millesime : 2011, vol. 32, no2 [pp. 179-194]

Bibliographic references : 21 ref.

Collation : 4 fig., 4 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 20106

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.2747/0272-3646.32.2.179

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
Refdoc record number (ud4) : 25804115 : Permanent link - XML version
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