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(~2.7 µmol/l) and increasing into the Baltic Proper, but unlike phosphate, the levels of dissolved inorganic nitrogen were highest in the Northern Baltic Proper (~4.5 µmol/l) and about the same in the Eastern and Western Gotland Basin (~3.4 µmol/l). Also the levels of silicate increased from Arkona Last updated: Mar 05, 2020

spirals). The Baltic The Baltic Sea has no noticeable permanent currents. The fresh water flowing into the sea from rivers travel as a thin layer above the salt water and turn to the right because of the earth’s rotation. The fresh water eventually mixes with the sea water. There is a large, slow Last updated: Apr 23, 2014

SMHI carries out research about phytoplankton and algal blooms. Topics include biodiversity, harmful algae, climate change effects on harmful algae and cyanobacteria blooms in the Baltic Sea.  Funders of projects includes the Swedish research council Formas, EU Horizon 2020, EU ERA4CS, the Swedish Last updated: Jun 25, 2020

A heatwave, with high temperatures over a sustained period of time, can have negative effects on health and can result in increased deaths. How hot it gets in a city can be influenced to some extent by how the urban landscape is designed and built. Dense building and many hard surfaces create local Last updated: Jul 04, 2022

Surface water temperatures in the Skagerrak, the Kattegat and the Baltic were normal. Nutrient concentrations were normal in the surface waters. Oxygen concentrations below 2 ml/l were found in the Baltic Proper at depths exceeding 60 to 80 metres. In the Western Gotland Basin hydrogen sulphide was Last updated: Apr 23, 2014

method of calculating them with sufficient accuracy is still open to investigation . However , it appears that calcu- lation of the momentum flux at 5° degree intervals in azimuth is sufficient for the required numerical inte- grations. Geographical Variation of Momentum Fluxes . Streamfunction data from Last updated: Aug 01, 2019

The weather during the expedition started with strong winds from the north. Then the weather was calm and sunny. The last day again there was windy weather. The winds came from southeast. The surface water temperatures were between 4.6 and 6.4°C in the Baltic, between 1.8-2.8°C in the Sound and in Last updated: Apr 23, 2014

new conductivity-temperature-depth measurement instrument (CTD). Data presented in this report have been subject to preliminary quality control procedures only. Nutrient concentrations in the surface waters were normal for the season almost everywhere. The exception was phosphate which, south-east of Last updated: Apr 23, 2014

akashiwo* that belongs to the Raphidophyceae was common at a couple of stations. The integrated chlorophyll concentrations were low but within normal for the month. At Släggö they were very low almost close to zero. The phytoplankton diversity and abundance were generally low at the Baltic stations and Last updated: Jan 29, 2021

. The nutrient concentrations were low, which is normal in the summer. In the Baltic Proper, dissolved inorganic nitrogen was depleted down to the halocline of between 40-60 m depth. However, phosphate remained in the surface water, although at low levels, the phosphate concentration started increasing Last updated: Jul 21, 2019