The sea-ice edge is defined as the 15% sea-ice concentration contour.
Sea-ice charts are provided by the Norwegian Ice Service. They are analysed from high-resolutions satellite information and available on weekdays.
Model forecasts for the following seven days are from the ocean and sea-ice forecasting system TOPAZ4. It is part of the Copernicus Arctic Marine Forecasting Center (ARCMFC). Details on the model quality can found on MET Norway's information page or in the documents provided here.
From the forecasting system we visualize the sea-ice concentration forecast and the sea-ice drift for the present-day.