I was wondering if you might be willing to help me work out the best way to use LiDAR data(downloaded both LAS and DEM IMAGINE files) for my project.
The project involves altering the terrain to add low water crossings at various angles and seeing what effect they have on the flood plains and sediment transport (-the analysis portion should be able to be done using Hec-ras using imported TINs or DEM files).
I seem to keep getting stuck on which route is best to alter the data. I've been altering it via 1m contours and creating new TINs(Design DEM method), however it seems to make a very choppy TIN and I am afraid it is altering more terrain than necessary to add this 5m wide crossing.
I would appreciate any and all insight you can provide me, I'm at a wits end here.