A catchment-scale assessment of anabranching in the 143 000 km2 Fitzroy River catchment, north-eastern Australia

Auteur(s) et Affiliation(s)

AMOS, K.J.

School of Physical Environmental and Mathematical Sciences, Univ. of New South Wales, Canberra, Australie

CROKE, J.C.

School of Physical Environmental and Mathematical Sciences, Univ. of New South Wales, Canberra, Australie

HUGHES, A.O.

School of Physical Environmental and Mathematical Sciences, Univ. of New South Wales, Canberra, Australie

CHAPMAN, J.

School of Physical Environmental and Mathematical Sciences, Univ. of New South Wales, Canberra, Australie

TAKKEN, I.

School of Physical Environmental and Mathematical Sciences, Univ. of New South Wales, Canberra, Australie

Description :
In this study of the Fitzroy River catchment, the AA. investigate whether an analysis of easily available remotely sensed and DEM data can provide useful information about the occurrence and the styles of anabranching. They present an initial analysis of anabranching in the Fitzroy River using maps and satellite imagery, in which 3 distinct anabranching morphologies that occur in different regions of the catchment are described. This is then followed by a catchment-scale analysis of all channels. Anabranching channels have a tendency towards shorter link lengths, lower sinuosities and lower valley slopes and occur at larger catchment areas than single channels. These differences are discussed in the context of published hypotheses regarding the cause of anabranching.

Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2008, vol. 33, n°. 8, p. 1222-1241, nombre de pages : 20, Références bibliographiques : 46 ref.

Date :
2008

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

Langue :
Anglais