In lab this week we demonstrated geomorphic change taking place in a flume. We used a TLS (ground based lidar) to acquire high resolution topographic point clouds at different points in time of the survey.
You can download the post-processed data set here. In it, you will find:
- DEMs for each of the surveys
- PTS and/or XYZ files for each of the surveys
- A projection for the local, assumed coordinate system
Your tasks are to:
- Create a GCD project with these data
- Load each DEM into the survey (for extra credit, you can derive it from scratch using the raw point clouds, TOPCAT, and zMin)
- Derive error surfaces for each DEM based on the detrended local standard deviation (i.e. from point cloud using ToPCAT)
- Conduct probabilistic change detection analyses (@ 80% CI) for Run 3 - Run 2, Run 2- Run 1 and Run 3 - Run 1.
Upload a zip file of your GCD project.