首页|Response to comment by Daley et al.,on"Assessing gully erosion and rehabilitation using multi temporal LiDAR DEMs:Case study from the Great Barrier Reef catchments,Australia"
Response to comment by Daley et al.,on"Assessing gully erosion and rehabilitation using multi temporal LiDAR DEMs:Case study from the Great Barrier Reef catchments,Australia"
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Daley et al.(2023a)argue that at least 10-15 years apart Digital Elevation Model(DEM)derived DEMs of Difference(DoD)surveys are needed to detect reliable geomorphic change within the gullied landscapes of the Great Barrier Reef,Australia.We acknowledge that the reliability of observed geomorphic change increases as more subtle geomorphic processes are detected with longer monitoring periods.As further good quality long-term legacy datasets become available,we encourage utilising these to improve confidence in targeting erosion rehabilitation.However,our approach to consistently apply 2-3 year DoDs to contrasting gully morphologies enabled capture of more intense geomorphic processes acting over shorter timeframes and provided valuable and timely information on(i)contrasting erosional mechanisms and erosion rates between variable gully morphologies,and(ii)rehabilitation efforts un-dertaken.In this paper,we take the opportunity to concisely address all the concerns raised by Daley et al.(2023a).
Digital elevation models(dis)connectivityRestorationGeomorphic change detectionGeomorphic effectivenessGIS
Sana Khan、Rebecca Bartley、Anne Kinsey-Henderson、Aaron Hawdon
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The Commonwealth Scientific and Industrial Research Organisation(CSIRO),Environment,1 James Cook Dr,Douglas,4814,Australia
The Commonwealth Scientific and Industrial Research Organisation(CSIRO),Environment,GPO Box 2583,Brisbane,QLD,4001,Australia
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