Levelling network connection between Latvia and Lithuania

Abstract

Unified and continuous national vertical network is back-bone for geodesy, cartography, civil engineering and global positioning. International institutions are working to reach homogenous and unified vertical datum all around globe. Evaluation of levellings on boarder between Latvia and Lithuania is under particularly interested. Connection between vertical networks is made in three places, so connecting lines construct the two first order levelling loops. Joined loop adjustment produce a good base to analyze and evaluate height connection between Latvia and Lithuania not only as between neighbouring countries, but as a part of EVRS also.