Data

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

The University of Queensland
Javier Leon (Aggregated by) Leon, Javier (Aggregated by) Mr Javier Leon (Aggregated by) Mr Javier Leon (Aggregated by)
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.1594/PANGAEA.783838&rft.title=Improved digital elevation model (DEM) for Lake Eyre, Australia&rft.identifier=10.1594/PANGAEA.783838&rft.publisher=The University of Queensland&rft.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.&rft.creator=Javier Leon&rft.creator=Leon, Javier&rft.creator=Mr Javier Leon&rft.creator=Mr Javier Leon&rft.date=2012&rft_rights=2012, The University of Queensland&rft_rights= http://creativecommons.org/licenses/by/3.0/deed.en_US&rft_subject=eng&rft_subject=PHYSICAL GEOGRAPHY AND ENVIRONMENTAL GEOSCIENCE&rft_subject=EARTH SCIENCES&rft.type=dataset&rft.language=English Access the data

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Open Licence view details
CC-BY

http://creativecommons.org/licenses/by/3.0/deed.en_US

2012, The University of Queensland

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Open

Contact Information

j.leonpatino@uq.edu.au

Full 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.

Issued: 2012

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Other Information
An improved bathymetric model for the modern and palaeo Lake Eyre

local : UQ:285094

Leon, J. X. and 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

Filling the 'white ribbon': a multisource seamless digital elevation model for Lizard Island, northern Great Barrier Reef

local : UQ:303138

Leon, Javier X., Phinn, Stuart R., Hamylton, Sarah and Saunders, Megan I. (2013). Filling the 'white ribbon': a multisource seamless digital elevation model for Lizard Island, northern Great Barrier Reef. International Journal of Remote Sensing, 34 (18), 6337-6354. doi: 10.1080/01431161.2013.800659

Research Data Collections

local : UQ:289097

Global Change Institute Publications

local : UQ:195152

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