On both September 19 and 23, Arctic sea ice dropped to its minimum extent of 1.77 million square miles (4.59 million square km). The 2018 minimum ties for the 6th-lowest in the satellite record.
Scientists track sea ice in the Arctic as it grows to a maximum extent through the winter and shrinks back in the summer to its minimum extent in September each year. This year’s minimum sea ice extent – the smallest area of ice for the year – reached 1.77 million square miles (4.59 million square km). That tied with 2008 and 2010 as the sixth lowest sea ice minimum since consistent satellite records began 40 years ago.
Source & Link: Earth Sky
Scientists track sea ice in the Arctic as it grows to a maximum extent through the winter and shrinks back in the summer to its minimum extent in September each year. This year’s minimum sea ice extent – the smallest area of ice for the year – reached 1.77 million square miles (4.59 million square km). That tied with 2008 and 2010 as the sixth lowest sea ice minimum since consistent satellite records began 40 years ago.
Source & Link: Earth Sky