Summary Baltic Sea Ice maximum 1960-1964 based on historical weather service observations. Description This dataset was compiled by Finnish Meteorological Institute (http://en.fmi.fi/) based on historical weather service observations (1960-1964) on sea ice extent in the Baltic Sea. The maximum ice extent map shows the areas which were at least once covered by ice within the study period. The maps were derived by digitizing existing ice extent maps to picture format and then to GIS shapefiles. Due to this reason the ice extent area should be considered as indicative especially within coastal areas. For further information, see http://www.iceservice.fi/.

Summary Baltic Sea Ice Maximum 2005-2009 based on weather service observations on sea ice extent in the Baltic Sea from satellite observations. Description This dataset was compiled by Finnish Meteorological Institute (http://en.fmi.fi/) based on weather service observations on sea ice extent in the Baltic Sea from satellite observations (2005-2009). The maximum ice extent map shows the areas which were at least once covered by ice within the study period. The maps were derived by digitizing existing ice extent maps to picture format and then to GIS shapefiles. Due to this reason the ice extent area should be considered as indicative especially within coastal areas. For further information, see http://www.iceservice.fi/.

Summary Baltic Sea Ice Minimum 2005-2009 based on weather service observations on sea ice extent in the Baltic Sea from satellite observations. Description This dataset was compiled by Finnish Meteorological Institute (http://en.fmi.fi/) based on weather service observations on sea ice extent in the Baltic Sea from satellite observations (2005-2009). The minimum ice extent map displays the area which was covered by ice in every year of the study period. The maps were derived by digitizing existing ice extent maps to picture format and then to GIS shapefiles. Due to this reason the ice extent area should be considered as indicative especially within coastal areas. For further information, see http://www.iceservice.fi/.

Summary Baltic Sea Ice Minimum 1960-1964 based on historical weather service observations on sea ice extent in the Baltic Sea Description This dataset was compiled by Finnish Meteorological Institute (http://en.fmi.fi/) based on historical weather service observations (1960-1964) on sea ice extent in the Baltic Sea. The minimum ice extent map displays the area which was covered by ice in every year of the study period. The maps were derived by digitizing existing ice extent maps to picture format and then to GIS shapefiles. Due to this reason the ice extent area should be considered as indicative especially within coastal areas. For further information, see http://www.iceservice.fi/.

The PLAN BOTHNIA project, co-ordinated by the HELCOM Secretariat, tested transboundary Maritime Spatial Planning in the Baltic Sea. The project used the Bothnian Sea area between Sweden and Finland as a case study of Baltic transboundary MSP. The project was a Baltic Sea MSP “preparatory action” funded by EU Commission DG MARE (budget 0,5 M EUR ) under the EU Integrated Maritime Policy, and run 18 months between 2. December 2010 and 1. June 2012. The final report can be downloaded here: https://planbothnia.org/the-pilot-plan/ The data covers the following topics: Maritime traffic Fishing and aquaculture Energy Nature protected areas Defence Scientific research Sand and gravel Tourism and recreation Cultural heritage All spatial data gathered during the project can be downloaded and used freely given that the source is cited. The data was gathered during the time span of the project (December 2010 and 1. June 2012) and it covers: Maritime traffic Fishing and aquaculture Energy Nature protected areas Defence Scientific research Sand and gravel Tourism and recreation Cultural heritage The source of the data were HELCOM and the different regional councils surrounding the Bothnian Sea.