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The sea-ice extent in the Arctic is broadly considered to be an important indicator for the on-going climate change. This year, the month of October, in which the freezing season begins and new ice is

Sea-ice conditions in the first half of October 2019 In mid-September, the autumnal sea-ice formation process began in the western Arctic Ocean (see Figure 1). Sea ice extent is with 4.97 Mio. km² far

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

Ship navigation at sea and especially in ice -covered oceans is facilitated by radar systems. In this regard, RV Polarstern is equipped with several marine radar systems, which are used to identify ot

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

In January 2020 the mean sea-ice extent was 13.42 million km², i.e., ca. 0.97 million km² below the long-term average for the month (see Figures 1 and 2). In January the ice cover in the Arctic showed

Summary Current predictions by international forecast centres and researchers, collected and evaluated by the Sea Ice Drift Forecast Experiment (SIDFEx), suggest that there is a chance that the drift

The MOSAiC expedition, the ultimate drift experiment through the Arctic in winter, has been underway since the 20th of September 2019. Its goal: to improve our understanding of the Arctic climate syst