Solutions for Geodetic Data Interconnection Between Romania and Bulgaria

This article aims to make a brief description of the work done to realize the interconnection for the coordinate and projection systems between Romania and Bulgaria. This has emerged as a necessity, because in the Danube basin, which belongs to Romanian sector, coexist more hydrometric systems, projection systems and reference ellipsoids. In order to ease the measurements, the determinations, the topo-geodetic maps and the hydrographical work is aimed to interconnect in a unitary system that meets the requirements of both countries. This study was conducted within the project "Set up of a support system for hydrographical works on the Danube in order to ensure minimal navigation depths (BORD)", whose beneficiary is AFDJ (Galati Lower Danube River Administration, A.A.).