This is not my very first mapping job, but close. This is the first time I’ve been on my own registering my own GCP’s (using Emlid), and the first time I’ll be using Pix4D mapper for a paying project. Of course the project looks pretty messy to me since I’m a rookie at this. So… I’ll appreciate all suggestions on this project, from planning and capture to procesing.
An environmental engineering firm wants mapping files to assess the volume of a decades old coal ash pile. The pile is about an acre in area, about 50-ft high, has a largely flat top, almost vertical sides, and trees/brush growing up in the sides. I’m attaching a couple of photos I took today during a prelim assessment. The pile is stable to foot and vehicle access.
I’m planning to use 12 GCP’s with about half on the pile and half on the surrounding grade. Will keep one or two to judge error. Based on MOCA, I’ll be flying about 120 feet above the top of the pile. Thinking I’m looking at a double grid plus some obliques and orbit. Shooting with a P4P. I believe that I have decent view of the surface on 3 sides and will have to make a SWAG estimate of the west side edge in the tress. Will see if I can upload a couple files showing two sides. Oops - new user so can only upload one. All comments & suggestions invited/welcome. I expect to be doing this project next week. Thanks All. Regards… R.