Gridding LiDAR Bathymetry Data using MapInfo Pro
In this video, I take you through the exercise of downloading LiDAR point cloud data in LAS format, gridding the LAS files in MapInfo Pro Advanced, and then using ProRaster to render the rasters.
I went looking for high-resolution terrain data for my LGA – the Central Coast of New South Wales, Australia. There have been two LiDAR surveys. The first, in 2008, was designed to survey the terrain, The second, in 2018, was designed to acquire bathymetry data for the coastal strip out to a distance of 200 meters offshore. Rasters at 5-meter resolution can be downloaded for both of these surveys, but I found the quality of these rasters was poor. So, I went back to the original point cloud data and created new Ground and Ground & Bathymetry surface rasters at 1-meter resolution.
In the video, I use ProRaster to render the rasters and to make side-by-side comparisons. This gives you the first sneak peek of ProRaster in operation. I hope to have this software available for commercial release by the end of March 2022. The good news is that using MapInfo Pro, you can quickly and easily create very high-quality rasters from the original survey data.