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(Article of periodic en Anglais - 2009)

Document title

Morphological change at the Snowy River ocean entrance, Victoria, Australia (1851-2008)

Authors(s) and Affiliation(s)

WHEELER P.J. (1) ; NGUYEN T.T. (1) ; PETERSON J. (1) ; GORDON-BROWN L. (1) ;
(1) Monash University, Melbourne, AUSTRALIE

Abstract

Analysis of data, including historical documentation, survey and navigation charts, and aerial imagery, representing a time series of 1851-2008 for the Snowy River ocean entrance area (located in East Gippsland) shows that much morphological change has occurred, including entrance channel migration along 8000 m of Holocene sandy barrier formation. Increasingly frequent episodes of Snowy River entrance channel closure to Bass Strait is apparent from reference to the 1981-2008 record. The GIS technology allows such long-term coastal zone change to be visualised and documented, and, to some extent, quantified. Explanations for this change relate primarily to altered stream flow regimes : after the development of the Snowy Mountains Hydro-electricity Scheme (SMHS) from 1951, which currently appropriates the vast majority of annual discharge from the high rainfall and snowfall areas of the upper Snowy River catchment. Whilst ebb-flow augmentation via stream flow discharge is essential to the maintenance of the Snowy River entrance, the Snowy River entrance is likely to remain ephemeral in the future as a direct consequence of inter-regional water transfer and climate change

Source

Article of periodic

published at : Australian Geographer / ISSN 0004-9182

Editor : Geographical Society of New South Wales, Sydney - AUSTRALIE (1928)

Millesime : 2009, vol. 40, no1 [pp. 1-28]

Bibliographic references : 3,5 p.

Collation : 7 fig., 6 tabl., 6 pl.

Language

Anglais

INIST-CNRS, Cote INIST : 3519

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1080/00049180802656945

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2009
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