Arctic Sea Ice Reaches 2021 Minimum Extent

Arctic Sea Ice Reaches 2021 Minimum Extent Key takeaway: as earth's atmosphere and ocean warm, seasonal melting of sea ice increases. this is most notable in the summer, when arctic sea ice cover reaches its smallest area, known as its minimum extent. measurements of summer arctic sea ice extent each year show a shrinkage of 12.2% per decade due to warmer temperatures. Arctic sea ice has likely reached its minimum extent for the year, at 4.72 million square kilometers (1.82 million square miles) on september 16, 2021, according to scientists at the national snow and ice data center (nsidc) at the university of colorado boulder.

Arctic Sea Ice Reaches 2021 Minimum Extent Arctic sea ice has passed its minimum extent for this year, shrinking to 4.72 million square kilometres on 16 september, the us national snow and ice data center (nsidc) has reported. The u.s. national ice center has determined that the 2021 minimum arctic sea ice extent occurred on 12 september 2021 with an area of 5.01 million square km based on analysis from the interactive multi sensor snow and ice mapping system (ims). The minimum sea ice extent for the 2021 season was around 4.724 million square kilometers in area, which is roughly 1.6 million square kilometers below the long term average. it is currently running almost a full million square kilometers larger than this time last year. The sea ice minimum occurs when the extent of sea ice covering the arctic ocean reaches its lowest point for the year. put another way, it’s the end of the summer melt season.

2021 Arctic Min Ice Coverage Press Release The minimum sea ice extent for the 2021 season was around 4.724 million square kilometers in area, which is roughly 1.6 million square kilometers below the long term average. it is currently running almost a full million square kilometers larger than this time last year. The sea ice minimum occurs when the extent of sea ice covering the arctic ocean reaches its lowest point for the year. put another way, it’s the end of the summer melt season. The arctic sea ice reached its 2021 minimum extent on sept. 16, coming in at 4.72 million square kilometers (1.82 million square miles), the 12th lowest on record. The seasonal cycle of arctic sea ice is characterized by the maximum annual extent in march, decreasing through spring and summer to an annual minimum extent in september. On september 16, arctic sea ice likely reached its annual minimum extent of 4.72 million square kilometers (1.82 million square miles). the 2021 minimum is the twelfth lowest in the nearly 43 year satellite record. Arctic sea ice reached a 2021 minimum of 4.72 million sq km on 16th september (figure 1). this is the 12th lowest minimum ice extent in the satellite era (since 1979).