At 4.0 million km², the sea-ice extent at mid-month was roughly 530,000 km² above the record low in 2012, and ca. 440,000 km² below the figure for the same month in 2019, the year with the third-lowes
Sea-ice development in the Arctic Following 2020, a year that managed to break a number of records in the Arctic, the new year has begun less spectacularly, as a closer examination of the months Decem
When was the buoy deployed and how far did it travel? As part of a German-Russian-American collaboration (project name: NABOS / TRANSDRIFT / TICE), the buoy designated 2018T52 was deployed in the Russ
The mean sea-ice extent for March 2021 in the Arctic was 14.72 million square kilometres (Fig. 1), placing it ca. 504,000 square kilometres above the record low from 2017 and ca. 620,000 square kilome
When German coastal researchers head for the North Sea this May to measure the nutrient load in the water and, for the first time, whenever they use a scientific instrument, it is automatically record
A time-lapse video of the MOSAiC expedition – a one-of-a-kind sequence compiled using a selection from ca. 2.5 million radar images. One of these systems was kept running nonstop throughout the MOSAiC
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
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
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