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Regional patterns of salt lake morphology in the lower Yarra Yarra drainage system of Western Australia

Boggs, Dimity Ann, Boggs, Guy S., Eliot, I. and Knott, B. (2006). Regional patterns of salt lake morphology in the lower Yarra Yarra drainage system of Western Australia. Journal of Arid Environments,64(1):97-115.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 7 times in Scopus Article | Citations

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IRMA ID 75034168xPUB17
Title Regional patterns of salt lake morphology in the lower Yarra Yarra drainage system of Western Australia
Author Boggs, Dimity Ann
Boggs, Guy S.
Eliot, I.
Knott, B.
Journal Name Journal of Arid Environments
Publication Date 2006
Volume Number 64
Issue Number 1
ISSN 1095-922X   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-27644498224
Start Page 97
End Page 115
Total Pages 19
Place of Publication UK
Publisher Academic Press Ltd Elsevier Science Ltd
Field of Research 0502 - Environmental Science and Management
HERDC Category C1 - Journal Article (DEST)
Abstract This paper examines the spatial variation of salt lake morphology in the lower Yarra Yarra drainage system of Western Australia. Shape, size (length and area), orientation and density of 4500 salt lakes were measured. Two main morphological groups were distinguished: small (< 10ha), elliptical to circular playas with a NNW-SSE orientation; and large (> 30ha), elongated playas. Intra-system variability in morphologic characteristics was notable. Regional patterns in lake size, shape and density distribution were markedly different between the west and east sides of the system. The boundary between the two sides coincides approximately with rainfall distribution. The Morawa sub-division in the west of the region was morphologically different from the remainder of the lower lacustrine system in that it had a predominance of small, elliptical playas and lacked a major playa. It was postulated that lake segmentation processes have been enhanced in this part of the system through a combination of local climate variation, the near-parallel orientation of the thalweg of the drainage system axis relative to prevailing winds, with possible topographical relief and geological influences.
Keywords morphology
orientation
segmentation
palaeochannel
playa lakes
basins
DOI http://dx.doi.org/10.1016/j.jaridenv.2005.04.010   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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