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The temperature in the surface water in all sea areas was normal and varied between 14–18 degrees, coldest in the western Gotland Basin. In all sea areas, there was a well-mixed surface layer separated from the underlying water by a thermocline at 10–20 meters deep. The salinity of the surface …

Species diversity and cell numbers were low at Å17, but high at the other three stations. Å17 had mostly small species of dinoflagellates, such as Gymnodiniales, Heterocapsa rotundata and Karenia mikimotoi*. The other stations had both diatoms and dinoflagellates in various sizes, as well as some …

The species diversity was overall high at most stations sampled along the west coast even if the total cell numbers were not. Different diatoms were found in relatively high cell numbers and for example the genus Pseudo-nitzschia* was common at all stations. Among the dinoflagellates, Karenia …

SMHI performed an oxygen and nutrient survey within SLU Aqua’s cruise; the International Bottom Trawl Survey (IBTS Q3), that covers the Skagerrak, the North Sea and the Kattegat. SMHI joins the cruise to perform CTD measurements in connection to each trawl and to take water samples for the annual …

To provide a better understanding of the effects of climate change in the Baltic Sea, Baltic Earth and HELCOM have recently published the first Baltic Sea Climate Change Fact Sheet. The publication compiles the latest available science in the region on climate change and its impact. 

The slightly milder and windier weather during August resulted in a decrease in the temperature in all sea areas and was now normal at most stations. In all sea areas, there was a well-mixed surface layer separated from the underlying water of a thermocline between 15–20 m depth. At some stations …

Since 2001, SMHI and ​​​​​​​ have worked in partnership to provide tailored weather forecasting services for interested parties within the European power industry.

Heating of the surface waters were observed in all visited areas with surface temperatures over 15 ℃ and with a thermocline as result, which is normal for June. The salinity varied more, about 7 psu in the Baltic Proper, between 12-18 psu in the Sound and the Kattegat. This is higher than normal in …

SMHI is mandated to provide climate information and produce the data needed to adapt Swedish society to the ongoing climate change in a user-adapted and science based manner and to reduce vulnerability for society.

The warm weather during June and July increased the surface water temperature in all sea areas. All sea areas, except the Skagerrak, had higher temperatures than normal. Salinity remained higher than normal in the eastern part of the Baltic Proper and in parts of its deep water.

Dissolved …