The article concerns selected issues of positioning and assessing of the X-Y-Z coordinates designated to marine drones related to the ground points. The considered terrain points concern the research dedicated to the Tombolo effect – Polish case study. The X-Y-Z coordinates of the studied terrain points are identified by geodetic and hydrographic measurements. The measurement methods and systems are based on unmanned aerial vehicles (UAV), terrestrial laser scanning (TLS), and the PL-2000 National System with related DSP with a dedicated software running. Taking into account aforementioned assumptions and considered case study region conditions the problems of positioning and assessing were analyzed and illustrated by the authors’ case study calculations for TLS method and proposed methodology of accuracy analysis for UAV method. Finally, the future research directions are shortly appointed.
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