Long-term variability of mean annual sea level at the Eastern Baltic Coast

Series of mean annual water level values in Baltiysk and Kronstadt (both - Russia) were used to analyze a long-term trend and the features of the interannual sea level variations for the period of 1840-2005. Yearly mean water level in Kronstadt is permanently higher than in Baltiysk, but the difference reduced significantly to the end of XXth century.