An Arctic Regional Ocean Observing System (Arctic ROOS) has been established by a group of 14 member institutions from nine European countries working actively with ocean observation and modelling systems for the Arctic Ocean and adjacent seas.

It provides access to sea ice and marine information from the Arctic, including daily processing of microwave remote sensing satellite data are used to generate;

• Maps of sea ice concentration
• Time series of Arctic sea ice area and extent
• Statistical inter-annual comparison of the ice area and extent
• Comparison of results from different retrieval algorithms

Seasonal and long term observations;

• Total sea ice area and extent from 1978 to present
• Climatology Sea Ice Concentration in Arctic
• Long-Term Global Surface Temperature Anomaly