Journal article
Accounting for uncertainty in volumes of seabed change measured with repeat multibeam sonar surveys
ACG Schimel, D Ierodiaconou, L Hulands, DM Kennedy
Continental Shelf Research | Published : 2015
Abstract
Seafloors of unconsolidated sediment are highly dynamic features; eroding or accumulating under the action of tides, waves and currents. Assessing which areas of the seafloor experienced change and measuring the corresponding volumes involved provide insights into these important active sedimentation processes. Computing the difference between Digital Elevation Models (DEMs) obtained from repeat Multibeam Echosounders (MBES) surveys has become a common technique to identify these areas, but the uncertainty in these datasets considerably affects the estimation of the volumes displaced. The two main techniques used to take into account uncertainty in volume estimations are the limitation of ca..
View full abstractGrants
Funding Acknowledgements
We are grateful to Sean Blake (Deakin University) for his help in data acquisition. The Warrnambool City Council funded this project but was not involved in study design, data collection, analysis and interpretation, in the writing of the manuscript or in the decision to submit the article for publication.We are grateful to the editors and an anonymous reviewer for their excellent comments and suggestions to improve this article. The Mat lab functions used in this research are available for download as part of the CoFFee toolbox at https://github.com/alexschimel/CoFFee/tree/master/functions/gis_DEM_analysis.