Modeling the effects of surface and bottom geometries on LiDAR bathymetric waveforms

Abstract : LiDAR bathymetric biases due to geometric changes at the air-water and water-bottom interfaces are investigated based on calculations made with a modified version of the waveform simulator Wa-LID. Main assumptions include a homogeneous water column and a spaceborne Lidar with a wavelength centered at 532 nm. Preliminary results showed major temporal modifications on second Lidar return (up to ± 100 cm or ± 10 ns) due to tilted bottoms. This shift was in average >6-fold the maximum bottom depth bias originated from capillary waves forming at the air-water surface.
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Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International, Jul 2014, Quebec, Canada. Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International, pp.2706 - 2708, 2014, 〈10.1109/IGARSS.2014.6947033〉
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Martin Montes-Hugo, Jean-Stéphane Bailly, Nicolas Baghdadi, Anis Bouhdaoui. Modeling the effects of surface and bottom geometries on LiDAR bathymetric waveforms. Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International, Jul 2014, Quebec, Canada. Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International, pp.2706 - 2708, 2014, 〈10.1109/IGARSS.2014.6947033〉. 〈hal-01523133〉

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