Regional ice charts show the analysis of ice conditions for a given region valid on Mondays. They are based on an analysis and integration of data from: satellite imagery, weather and oceanographic information, visual observations from ship and aircraft. Satellite imagery is collected over a few days in order to have complete coverage of the area.
The charts indicate the concentration in tenths, stage of development and form of ice. They also list the mean and normal temperatures of some of the region's stations, which give an indication of one of the factors contributing to current ice conditions. Ice information is presented in the Egg Code format and colour-coded using the World Meteorological Organization Standard.