Most likely, your project site has some places where LiDAR signals cannot penetrate through a dense canopy of conifers. Point cloud generation using sUAS-based photography has its own set of limitations when the ground is unable to be seen. Consequently, this is when traditional ground-based measuring techniques using a Total Station must be used in place of, or to augment, remotely sensed data.
Fortunately, any or all of these data gathering techniques can be used together to meet your topographic survey needs:
- sUAS Photographs
- Total Station