Sea-ice risk calculation for the Arctic shipping routes based on segmental safety assessment

The work flow of sea-ice risk assessment using multi-source ice-condition data is investigated. Based on the remote sensing ice-condition data, such as ice concentration, ice thickness, and ice type the calculation method of sea-ice risk index for ships with different ice classification is improved according to the POLARIS（Polar Operational Limit Assessment Risk Indexing System）. The waterway segment safety assessment model for the Artic shipping routes is constructed, with which the danger degree of the sea-ice for ships with different ice classification at given segment is predicted. The overall safety of complete route is determined based on the results of waterway segments.