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In April 2017, sea-ice physicist Stefanie Arndt from the Alfred Wegener Institute in Bremerhaven proved once again that necessity is the mother of invention: she and her colleagues were wondering how

The sea-ice extent in the Antarctic is slowly but surely nearing its seasonal minimum, which we expect to see roughly a month from now. With 3.36 million km² of pack ice covering the Antarctic contine

The air temperature, humidity, pressure and wind fields determine the circulation, and with it, the inflow of warm air masses from the temperate latitudes. In addition, the ocean temperature is the mo

While the summer minimum was reached in the Antarctic on 19 February 2020 (at 2.68 million km²), in the Arctic the extent has been growing steadily since the end of February, and hasn’t yet reached it

On 4 March 2020, the Arctic sea-ice extent reached its winter maximum at 14.98 million km² and has been steadily declining ever since. The value is now hovering near the bot-tom limit of two standard

Particularly in the Bering Sea, but also in the Sea of Okhotsk and eastern Barents Sea, the amount of sea ice was below the long-term average for 2003 – 2014. In contrast, the ice margin was above the

These include data on sea-ice formation and dynamics in the Antarctic pack-ice belt. When the Federal Republic of Germany became a signing member of the Antarctic Treaty in 1979 and established the Ge

Not until the end of the month did the sea-ice extent substantially decline, dropping below two standard deviations from the average for the period 1981 – 2010. At the same time, the summer solstice w

While the Arctic sea ice continues to decline, a glance at the Southern Ocean reveals a different picture: in recent years and decades, the sea-ice extent has increased slightly – albeit with clearly

Markedly low levels of winter sea ice in the Barents Sea and Bering Sea; Arctic is losing substantial amounts of older sea ice through Fram Strait In Svalbard, meteorologists observe rapid temperature