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A statistical mode! is developed to reconstruct atmospheric surface data for the period 1902-I998 to force a coupled ocean-sea ice mode! of the Baltic Sea. As the longest time scale of the Baltic Sea is on the order of 30 years, climate relevant model studies should cover century Iong simulations Last updated: Jun 03, 2019

found at depths exceeding 50 to 100 metres in all basins. Hydrogen sulphide was also found deeper than 70 to 90 metres. For a more detailed description of the oxygen status in the Baltic, see Report Oceanography No.45 Oxygen Survey in the Baltic Sea, 2012. http //www.smhi.se/publikationer Last updated: Apr 23, 2014

The surface water (0–10 m) had only become slightly colder since October and was warmer than normal at almost all stations, the temperature was 10–12 degrees. The salinity of the surface water in the Baltic Proper was still above normal for the season and varied between 6.6–8.5 psu. In the Kattegat Last updated: Nov 23, 2020

processes in the sea occur with short time-scales that are like the weather’s, from a few days to a week or so. The FerryBox now provides us with more and quicker information about sea and air temperatures, the oxygen and salt content of the surface water, the occurrence of different algae and other Last updated: Mar 20, 2017

. Hydrogen sulphide was found in the Bornholm and Gotland Deep, and at all stations in the Northern Baltic Proper and Western Gotland Basin. In the Bothnian Bay, surface water temperatures were slightly higher than last year. This may delay sea ice formation, despite the very low air temperatures experienced Last updated: Apr 23, 2014

found at depths exceeding 50 to 80 metres in all basins. Hydrogen sulphide was also found in all areas deeper than 70 to 90 metres. For a more detailed description of the oxygen status in the Baltic, see Report Oceanography No. 42 Areal Extent and Volume of Anoxia and Hypoxia in the Baltic Sea, 1960-2011. Last updated: Apr 23, 2014

Surface water temperatures in the Skagerrak and the Kattegat were above normal. High nutrient concentrations were found in the surface waters outside of Gullmarfjord, due to recent heavy rain. Concentrations in the southeastern Skagerrak were also high, due to influence from southern North Sea. An Last updated: Apr 23, 2014

Last updated: Dec 21, 2022

national monitoring programme are reported to ICES annually. Meta-data from both national (mainly open sea) and regional (coastal) monitoring programmes are reported to SeaDataNet. ICES are harvesting physical-chemical data from SeaDataNet OSPAR Assessment 2016 15 and due to this process Swedish coastal Last updated: Aug 01, 2017

some stations could therefore not be sampled. The surface water temperature varied between 5-6 °C which is about 2-3 °C above normal for the season. Due to the unusually warm surface water, the concentration of oxygen in the surface water was lower than normal in all sea areas, as warm water dissolves Last updated: Mar 05, 2020