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Time series analysis of landslide dynamics using an Unmanned Aerial Vehicle (UAV)

Citation

Turner, D and Lucieer, A and de Jong, SM, Time series analysis of landslide dynamics using an Unmanned Aerial Vehicle (UAV), Remote Sensing, 7, (2) pp. 1736-1757. ISSN 2072-4292 (2015) [Refereed Article]


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Copyright Statement

Copyright 2015 The Authors-this article has beeen Licenced under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) (CCBY 4.0)

DOI: doi:10.3390/rs70201736

Abstract

In this study, we used an Unmanned Aerial Vehicle (UAV) to collect a time series of high-resolution images over four years at seven epochs to assess landslide dynamics. Structure from Motion (SfM) was applied to create Digital Surface Models (DSMs) of the landslide surface with an accuracy of 4–5 cm in the horizontal and 3–4 cm in the vertical direction. The accuracy of the co-registration of subsequent DSMs was checked and corrected based on comparing non-active areas of the landslide, which minimized alignment errors to a mean of 0.07 m. Variables such as landslide area and the leading edge slope were measured and temporal patterns were discovered. Volumetric changes of particular areas of the landslide were measured over the time series. Surface movement of the landslide was tracked and quantified with the COSI-Corr image correlation algorithm but without ground validation. Historical aerial photographs were used to create a baseline DSM, and the total displacement of the landslide was found to be approximately 6630 m3. This study has demonstrated a robust and repeatable algorithm that allows a landslide’s dynamics to be mapped and monitored with a UAV over a relatively long time series.

Item Details

Item Type:Refereed Article
Keywords:landslide, UAV, Cosi-corr, digital elevation model (DEM)
Research Division:Earth Sciences
Research Group:Physical Geography and Environmental Geoscience
Research Field:Geomorphology and Regolith and Landscape Evolution
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:Turner, D (Mr Darren Turner)
Author:Lucieer, A (Associate Professor Arko Lucieer)
ID Code:99262
Year Published:2015
Web of Science® Times Cited:45
Deposited By:Geography and Environmental Studies
Deposited On:2015-03-18
Last Modified:2017-10-30
Downloads:194 View Download Statistics

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