I am currently working on a small project which entails creating some flood senarios using newly current lidar data. However I have an issue with lidar data. The Lidar data which we have received contains reflections on the water surface so called specular reflections ( see attatchment beneath) which cause the water surface to have elevations where there are nearby trees and vegetation. In order to create a flood senario, we will therefore not be able to use the current water surfaces in the lidar data. How then will we be able to create flooding estimates in the water surface height is not reliable?
Does anyone have any information regarding how to "clean" these types of distortions? Or would my model somehow disregard the water surface anyway?