Ice Service

SAR data

The operational sea ice service at produces high resolution sea ice concentration charts based on a manual interpretation of satellite data. The main satellite data used are the weather independent Synthetic Aperture Radar data from the Radarsat-2 satellite. The Radarsat data are in scansar wide mode dual polarization. Each scene covers an area of 500 x 500 km and has a spatial resolution of approximately 50 meter. The scenes are mainly focused around the Svalbard and Barents Sea areas.


In addition to SAR data, we use visual and infrared data from METOP, NOAA and MODIS in cloud free conditions. These satellites data cover the charting area several times each day and are resampled to 1000 x 1000 meter. The operator uses the latest available satellite data to manually analyse and classify areas of different concentrations based on the concentration intervals defined by the WMO (World Meteorological Organization).

A new sea ice concentration product is available every weekday around 1400 GMT.

Ice Charts

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