[ASC-list] Gold Coast AFluvial Geomorphologist, Australian Rivers
jayne.keane at qm.qld.gov.au
Wed Oct 24 05:56:29 UTC 2012
3-4 pm Friday 26 October 2012
Campus Heart_N76 room 1.09
Griffith Univesity, Nathan Campus
Associate Prof Jacky Croke
Fluvial Geomorphologist, Australian Rivers
Understanding river form and processes is essential to the effective
protection and management of these ecosystems from a geomorphic,
ecological, hydrological and engineering perspective. River form and
processes are known to vary widely in space and time. As a result, the
evolution of river science has seen the emergence of a number of
conceptual frameworks which have been used to characterise the 'typical'
form and process of rivers. Examples include downstream hydraulic
geometry (DHG), the river continuum concept (RCC), sediment links and
more recently self-organisation and self-organised criticality (SOC).
The data required to assess these frameworks is often lacking especially
at the basin-scale and, as a result, our knowledge of river form and
process is often a product of limited measurements and theoretical
predictions. Emerging technologies and the more routine availability of
high-resolution, remotely-sensed data such as Light Detection and Raging
(LiDAR) and high resolution Digital Elevation Models (DEMs) means that
geomorphology is now well-placed to populate and test some of these
This seminar is a theoretical look at the form of geomorphic response
which occurred during the catastrophic Locker Creek flood of January
2011. Multi-temporal LiDAR data and high resolution DEMs are used to
examine the resultant form and processes of river adjustment.
Specifically the seminar examines evidence for such concepts as
'self-organisation' and 'non-linearity' of river response, and concludes
with some implications for river management.
Speaker: A/Prof Jacky Croke is a fluvial geomorphologist at the
Australian Rivers Institute Griffith University. Her position is part of
a joint initiative between GU and Landscape Sciences within the
Queensland Department of Science, Information Technology, Innovation and
the Arts (DSITIA formerly DERM).
Australian Rivers Institute
ari-events at griffith.edu.au <mailto:c.ohare at griffith.edu.au>
Ph. 07 3735 7681
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