Improved digital elevation model (DEM) for Lake Eyre, Australia

Leon, Javier X. and Cohen, T. J. (2012): Improved digital elevation model (DEM) for Lake Eyre, Australia. Pangaea. Dataset. doi:10.1594/PANGAEA.783838


 
Related Publications and Datasets
 
Project name Improved digital elevation model (DEM) for Lake Eyre, Australia
Project description
Demonstrate the applicability of using altimetry data and Landsat imagery to provide the most accurate digital elevation model (DEM) of Australia's largest playa lake - Lake Eyre
Contact name Javier X. Leon
Contact email j.leonpatino@uq.edu.au
Creator name Leon, Javier X.
Cohen, T. J.
Creator(s) role Chief Investigator
Dataset name Improved digital elevation model (DEM) for Lake Eyre, Australia
Dataset description
Here we demonstrate the applicability of using altimetry data and Landsat imagery to provide the most accurate digital elevation model (DEM) of Australia's largest playa lake - Lake Eyre. We demonstrate through the use of geospatial techniques a robust assessment of lake area and volume of recent lake-filling episodes whilst also providing the most accurate estimates of area and volume for larger lake filling episodes that occurred throughout the last glacial cycle. We highlight that at a depth of 25 m Lake Mega-Eyre would merge with the adjacent Lake Mega-Frome to form an immense waterbody with a combined area of almost 35,000 km**2 and a combined volume of ~520 km**3. This would represent a vast water body in what is now the arid interior of the Australian continent. The improved DEM is more reliable from a geomorphological and hydrological perspective and allows a more accurate assessment of water balance under the modern hydrological regime. The results presented using GLAS/ICESat data suggest that earlier historical soundings were correct and the actual lowest topographic point in Australia is -15.6 m below sea level. The results also contrast nicely the different basin characteristics of two adjacent lake systems; Lake Eyre and Lake Frome.
Access conditions Open Access
Licencing and terms of access Creative Commons Attribution (only)

View License Details
ANZSRC Field of Research (FoR) Code 0406 Physical Geography and Environmental Geoscience
DOI 10.1594/PANGAEA.783838
Related Publications
Leon, Javier X; Cohen, T J (2012): An improved bathymetric model for the modern and palaeo Lake Eyre. Geomorphology, 173-174, 69-79, doi:10.1016/j.geomorph.2012.05.029
Type of data Data
Images
Data Volume 77.0 MBytes
Language eng
Collection type Dataset
Publisher Pangaea
Publication Year 2012
Copyright notice 2012, The University of Queensland

Document type: Data Collection
Collections: Global Change Institute Publications
Research Data Collections
 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Tue, 04 Mar 2014, 14:20:25 EST by Susan Wilson