Author: Langdon Sanders | GIS@dublin.oh.us December, 2023
Some template framework steps for common operations in creating lidar-derived contours from many .laz tiles downloaded from USGS site.
You will need a data.txt file from USGS from your cart of lidar data as a starting point.
This also uses our project level settings for the GIS products, i.e. 1ft contours; you'll need to adjust the last few steps for your needs, such as coordinate system, cell size for DEM, and contour interval.
- Download .laz files from a list of URLS (your cart from the USGS site)
- Convert them to .las
- Create a Las Dataset
- Create a Filter for Ground Only Points
- Create a Digital Elevation Model (DEM)
- Create Contours from DEM
- Export Contours as Shapefile