This technical report outlines the methodology and results of topographic and topobathymetric surveys conducted at the Cătămărești reservoir in Botoșani County, undertaken by SysCAD Solutions S.R.L. in collaboration with the Prut-Bârlad Water Administration. Utilizing GNSS receivers, mobile and static scanners, aerial drones, and bathymetric equipment, the survey aimed to obtain high-resolution data for the reservoir, dam body, and surrounding areas. Data processing was performed using Sierrasoft ProST software, resulting in a comprehensive 3D model, orthophotoplan, cross-sectional profiles, and volume-capacity curve calculations for the reservoir. These outputs serve as critical resources for hydraulic studies, maintenance planning, and area protection strategies. Using the Sensefly eBeeX drone, a flight was made of the entire study area, in order to obtain an orthophoto plane and a digital model of the surrounding terrain in the form of a cloud of points. This model can be used at any time in the hydraulic or systematization studies of the Cătămărăști accumulation protection area. With the help of the static scanner, 15 terrestrial scans of the dam body were performed in order to obtain its 3D model with high accuracy and precision. With the help of the G4 receiver, the coordinates of the specific points of the dam body, the coordinates of the rapiers mounted on it and the piezometers were determined. The measurement method was the RTK method, averaging the measured points for 30 seconds at an interval of 1 second.

Topobathymetric, 3D Model, Scanning, GNSS, CAD

geodesy engineering

Presentation: poster