Abstract
In this study, a basin with an area of 20 km2 was chosen as the study area to more quantitatively understand the temporal and spatial variation of the rainfall-induced sediment volume changes during a period. The 2 m high-resolution DTMs derived from airborne LiDAR data acquired in 2005 and 2010 were used to characterize sediment yield and sediment transport processes such as debris flows and hyper-concentrated flows in the study area. With an acceptable volumetric estimation error (20 %) due to uncertainty of the topography, comparing the two temporal DTMs reveal that LiDAR is an efficient way to assess sediment volume changes at the basin scale over a 5 year period.
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Tseng, CM., Lin, CW., Chang, KJ. (2015). The Sediment Budgets Evaluation in a Basin Using LiDAR DTMs. In: Lollino, G., Arattano, M., Rinaldi, M., Giustolisi, O., Marechal, JC., Grant, G. (eds) Engineering Geology for Society and Territory - Volume 3. Springer, Cham. https://doi.org/10.1007/978-3-319-09054-2_8
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DOI: https://doi.org/10.1007/978-3-319-09054-2_8
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