Marine environment

The sea is often in focus as a resource for society and its people, for recreation and for transportation. A sustainable environment and climate development are prerequisites for a sustainable use of ocean and its resources. SMHI provides the individual, government, researchers and the international community with data, forecasts and scenarios, and current information.


26 June 2014

Baltic Earth research programme takes more durable form

The Earth System Science programme called Baltic Earth is now entering a permanent phase after an initial year of development. Baltic Earth enables researchers to co-ordinate transnational research around the Baltic Sea.

Baltic Earth research programme takes more durable form
22 May 2014

Future of the Baltic Sea the focus of new research

The problems associated with eutrophication have long affected the Baltic Sea. Large blooms of toxic algae, oxygen-free bottoms and changes to composition of species have all impacted on the sea. Four years of research will provide more knowledge about the future of the Baltic.

Future of the Baltic Sea the focus of new research
09 April 2014

How will the climate be impacted by future changes to the Arctic's sea ice and snow cover?

This is a key issue in a newly established research project that will examine climate change in the Arctic over the next 30 years. The study will show how the reduced amounts of sea ice and snow in the Arctic are interacting with climate change.

How will the climate be impacted by future changes to the Arctic's sea ice and snow cover?


My Ocean

Ocean Monitoring in Europe standardised in the MyOcean mega project. SMHI and more than 60 other institutes is working on EU MyOcean project. The monitoring of all oceans from the Black Sea to the Barents Sea is to be combined and downscaled which will improve oceanographic forecasts. Ocean monitoring in Europe standardised in the MyOcean mega-project


ECOSUPPORT (Advanced tool for scenarios of the Baltic ECOsystem to SUPPORT decision making) is a BONUS funded project to address the urgent need for policy relevant information on the combined future impacts of climate change and industrial and agricultural practices in the Baltic Sea catchment on the Baltic Sea ecosystem. Marine environment in changing climate

Oceanographic research

The oceanographic research group at SMHI have expertise in a wide range of ocean science fields such as numerical modelling, remote sensing, marine biology and marine observations.
  1. Oceangraphic Research at SMHI
  2. Numerical Models


Climate indicators

SMHI has developed a number of "climate indicators" that can be used to follow the climate change in Sweden. The climate indicators show deviations in temperature, precipitation, geostrofical wind and sea level.

Climate indicators

Environmental Fact sheets

SMHI has developed a range of fact sheets describing every year the environmental status. These are used both nationally and internationally, for example within HELCOM cooperation. The fact sheets describe on a yearly basis the development of salinity, stratification, oxygen, water exchange, river run-off, cyanobacteria blooms and the spatial distribution of winter nutrients.

HELCOM - Indicator Fact Sheets




Reports from SMHI's offshore sampling programme, which describe the situation in our surrounding seas.

  1. Cruise reports from the marine monitoring
  2. Algal situation reports
  3. Report Archive Marine Monitoring
  4. The algae situation in the Baltic Sea

Sea observations

Access to data - sea level, temperature, salinity, forcasts, wave height and currents.

  1. Ice conditions and sea surface temperature map
  2. Oceanographic forecasts - OceanWeb
Isbrytaren Oden i Antarktis.

Weather and oceanographic data from icebreakers

Weather and oceanographic data are now transferred in real-time from the icebreakers Oden, Frej and Atle via satellites. The icebreakers operate primarily in the Gulf of Bothnia but are available for the whole Baltic Sea region if needed. Oden also operates in Arctic and Antarctic waters during certain years.

  1. Weather data from the icebreaker Oden
  2. Weather data from the icebreaker Frej
  3. Weather data from the icebreaker Atle




Learn more about the ocean - sea ice, waves, currents, sea level, algal blooms and other physical properties of sea water. Learn more about the ocean


SHARK Svenskt HavsARKiv

Marine environmental data

Extract marine physical, chemical and biological data from the Swedish environmental monitoring.

Data host - Marine environment

Swedish water archive (SVAR)

Here your can find information about Swedish water bodies.

SVAR - Swedish water archive


SeaDataNet is a co-operation between the European oceanographic data centres, which makes data available from one single web site. SeaDataNet

EMODnet - European data

EMODNET Chemistry 2 is built on EMODNET Chemistry pilot components of the EU's maritime policy, to deliver a marine observation infrastructure that offers the most effective support to the marine and maritime economy whilst supporting environmental protection needs, launched by the Directorate-General for Maritime Affairs and Fisheries (DG MARE).

  1. EMODnet chemistry
  2. EMODnet biology

BALTEX (The Baltic Sea Experiment)

BALTEX is a part of the World Meteorological Organization. The GEWEX project studies the flows of eg. carbone and nutrients in the Baltic sea region. SMHI provides the project with oceanographical and hydrological data.
  1. Oceanographic Data Center for BALTEX

Environment Climate Data Sweden

Environment Climate Data Sweden, ECDS, is a Swedish service facilitating the searching, publication and long-term accessibility of data for research in the fields of environment and climate.

ECDS - Environment Climate Data Sweden


Dispersion calculations and risk assessments

SMHI calculates how pollutants and other emissions disperse into the air and water under different conditions.
  1. Dispersion calculations and risk assessments
  2. HELCOM - Indicator Fact Sheets

Tracking of pollutants in the sea

To minimise the damage on the environment, it is important to quickly develop a forecast regarding how the oil is dispersing and where it is heading. Forecasts of oil spills - Seatrack web

HOME Water-action planning for lakes, watercourses and coastal waters

With the web service HOME Water, it is possible to carry out a cost-effective action planning in accordance with EU’s framework directive for water for lakes, watercourses and coastal waters. HOME Water

Measurements in the air and water

SMHI carries out qualified measurements of the air and water which form the basis of economic and environmentally strategic decisions. The investigations concern physical and/or chemical conditions. Measurements in the air and water


Questions, comments and RSS-feed

Please see links below. Here you can ask questions about oceanography, give comments and suggestions about the Marine Environment site and also get news from the RSS-feed.

  1. Ask the oceanographer
  2. Give comments and suggestions
  3. RSS feed - Cruise reports from the marine monitoring
  4. RSS feed - Algal situation reports