Abstract:
Climate changes and global warming are assume for main reasons of constant sea level rise. Survey methods such as altimetric measurements are essential for determining global processes related to sea level change, but the regional and local changes are also important. In this paper regional sea level changes at tide gauge station Varna at Black sea coast are analyzed. Single spectrum analysis is use to analyze the monthly sea level data for the period 1929-2019. The sea level trend, long term tidal constituents – amplitudes and phases, are estimated. The results clearly indicate positive mean sea level trend with value of 1.2 ±0.1mm/yr.