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Federal
Sea Ice Index, Version 3
National Aeronautics and Space Administration —
The Sea Ice Index provides a quick look at Arctic- and Antarctic-wide changes in sea ice. It is a source for consistent, up-to-date sea ice extent and concentration... -
Federal
Canadian Ice Service Arctic Regional Sea Ice Charts in SIGRID-3 Format, Version 1
National Aeronautics and Space Administration —
The Canadian Ice Service (CIS) produces digital Arctic regional sea ice charts for marine navigation, forecasting, and climate research. The ice charts are created... -
Federal
Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data V002
National Aeronautics and Space Administration —
This data set is generated from brightness temperature data and is designed to provide a consistent time series of sea ice concentrations spanning the coverage of...