It was an unforgettable welcome: when we came in from the Arctic cold (-25°C) and first set foot in the entrance area of Canada’s CFS Alert station, the entire staff, decked out in their best uniforms
“May 2018 was the warmest May in Germany since 1881, and the second consecutive month (together with April 2018) with a new record high.” That was the German Weather Service’s review of the current we
CryoSat-2, a radar altimeter satellite of the European Space Agency (ESA), had its eighth birthday on April 8, 2018. Observations from CryoSat-2 add vital information on sea ice thickness to other sat
The stratosphere is the part of our atmosphere beginning at an altitude of ca. 10 km, and where, thanks to the absorption of the trace gas ozone, temperatures rise with increasing altitude. Normally,
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
The standard unit used for the sea-ice volume is thousands of cubic kilometres, and offers a better measure of the state of Arctic sea ice than the extent, since the volume includes the thickness of t
During the MOSAiC expedition, researchers from 19 countries will study the Arctic throughout an entire year, spending the winter in a region that is virtually inaccessible in the polar night. Alone th
On 11 September the sea-ice extent (sea-ice concentration > 15 %) was 3.94 million km² (see Figure 1) and on 3 September 2019 it had already decreased to 3.82 million km², the lowest level so far this
According to analyses from the University of Bremen’s Institute of Environmental Physics, the mean sea-ice extent in the Arctic this October was only 5.44 million km², which is more than 443,000 km² b
But this year, February was extraordinarily warm. Analyses of satellite and station data indicate that very warm air has been advected towards the Arctic, which allowed temperatures to rise until the
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