Surface area and volume

Determining volumes and areas of surfaces is a frequent task in surface mining and landfill management. Classical ways of determining volumes include surveying cross sections. This method relies on a set of discrete points surveyed by a global navigation satellite system (GNSS) receiver or with a total station. In order for these discrete points to best reflect the complexness of the terrain, they would have to be very densely distributed around the area of ​​interest. Surveying such a dense set of points is very time consuming and uneconomical. By using a 3D laser scanner or a drone, we are able to create a very dense point cloud of the terrain that is obtained by a fraction of time of the conventional methods. Point clouds are useful for creating a 3D model of the area. This model can be used to create a contour map, calculate volumes, calculate areas, and create vertical cross sections.