Scan Survey utilizes sonar for marine measurements in coastal waters, lakes, and rivers. The sonar produces a point cloud which is then processed into a TIN-model. This model is smoothly and seamlessly sewn together with other types of measurements such as land survey or photogrammetry by RPAS / drone.
Scan Survey uses a sensor from Simrad, a subsidiary of Kongsberg Maritime AS. It is a single-beam sonar with two frequencies, with a lower limit of approximately 50 meters. The sonar is positioned with GPS / GNSS or total station. The picture below shows an example of a seamless model of both sonar and land survey data.
