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Northern-Hemisphere Sea-Ice Concentration
Southern-Hemisphere Sea-Ice Concentration
Time Series
Northern-Hemisphere Sea-Ice Concentration
Observations: SSM/I NASATeam
Observations: SSM/I Bootstrap
Observations: ICESat
Southern-Hemisphere Sea-Ice Concentration
Observations: SSM/I NASATeam
Observations: SSM/I Bootstrap
Observations: ICESat