Sea ice concentration map with annual comparison graph

(top) Sea ice concentration (light blue to white) on September 15, 2020, the day of the summer minimum extent. The gold line is the median extent for 1981-2010: half of years had smaller extents, half had larger. (bottom) A graph of daily ice extent since 2005. Years 2005-2009 are light purple, the record-low year 2012 is salmon, other years for 2010-2014 are light green, and years 2015-2019 are blue. The 2020 daily extent line is in black. NOAA image, based on data from the National Snow and Ice Data Center.