Long term water level OCEANOLOGIA, 53 (1-TI), 2011. and surface temperature pp. 293–308. C 2011, by Institute of changes in the lagoons of Oceanology PAS. the southern and eastern KEYWORDS Baltic Baltic Sea lagoons Water level Sea surface temperature Variability Climate changes Inga Dailidiene˙ 1,⋆ Henning Baudler2 Boris Chubarenko3 Svetlana Navrotskaya3 1 Geopgysical Sciences Department, Coastal Research and Planning Institute, Klaip˙eda University, H. Manto 84, Klaip˙eda 92294, Lithuania; e-mail:
[email protected] ⋆corresponding author 2 Institute for Biosciences (IFBI), Applied Oecology/Biological Station, Rostock University, Albert-Einstein Str. 3, Rostock 18057, Germany, M¨uhlenstr. 27, Ostseeheilbad Zingst 18374, Germany 3 Atlantic Branch, P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Prospekt Mira 1, Kaliningrad 236000, Russia Received 6 October 2010, revised 17 February 2011, accepted 17 February 2011. Abstract The paper studies variations in the water level and surface temperature of coastal lagoons along the southern and south-eastern shores of the Baltic Sea: the Curonian Lagoon, Vistula Lagoon, and Darss-Zingst Bodden Chain. Linear regressions for The complete text of the paper is available at http://www.iopan.gda.pl/oceanologia/ 294 I. Dailidien˙e, H. Baudler, B. Chubarenko, S. Navrotskaya annual mean water level variations showed a positive trend in water level, but at different rates. The highest rate during the period between 1961–2008 was recorded for the Curonian and Vistula lagoons (∼ 4 mm year−1), the lowest for the Darss- Zingst Bodden Chain (approximately ∼ 1 mm year−1). The warming trend of the mean surface water temperature in the lagoons was 0.03◦C year−1 in the period 1961–2008.