CURRENT GEODETIC TECHNOLOGIES IN THE MAINTENANCE OF SPECIALIZED MAPS AND REGISTERS OF SEA BEACHES IN THE REPUBLIC OF BULGARIA

The latest amendments to Ordinance 1 on the creation and maintenance of specialized maps and registers of specialized public state property under the Act on the Black Sea coast spatial development create a procedure for changing and periodically updating these specialized maps and registers, as the existing regulation regulated only their creation and acceptance. The change and the periodic updating of these specialized maps and registers are assigned by the Bulgarian Agency for Geodesy, Cartography and Cadastre to certified individuals to perform cadastral activities, a qualified land surveyor who prepares the necessary draft amendments and documentation. In the above context, the article aims to present the results of the application of current geodetic technologies and solutions in connection with geodetic activities for periodic updating of specialized maps and registers under the Act on the Black Sea coast spatial development for the famous Bulgarian sea beach. The periodic update includes control geodetic measurements and analysis against the data reflected in the specialized maps and registers and the cadastral map and the cadastral registers; capture of new or changed objects, sub-objects and elements; verification of the characteristics of the objects and sub-objects. The obtained results are presented with the help of unmanned aerial system and global navigation satellite system and conclusions and recommendations are made for their applicability on the presented issues.