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Research aircraft from the Alfred Wegener Institute have been surveying the ice-covered Arctic Ocean for 30 years. The immense effort of the past 52 expeditions has paid off: 40,000 km of measurement

Relevance of melt ponds In the Arctic summer, the sea ice melts due to rising temperatures and constant sunlight. When it does, meltwater can gather in pools on the surface, known as melt ponds. These

Sea ice cores from the MOSAiC expedition (2019-2020) are one of the treasures that were brought back to Bremerhaven at the end of the year-long Arctic drift in October 2020. Now, a group of scientists

The further sea-ice retreat will chiefly depend on the ocean temperatures and on wind patterns, which can either condense or disperse the sea ice. As the summer draws to a close, the surface of the ce

It takes perseverance, a love for detail, and a tremendous amount of stamina, as the findings of a joint German-Russian project now show. In the project, experts from the Alfred Wegener Institute and

Background Satellite altimeters measure how much the sea-ice surface floats above the water level. This parameter is called freeboard and it is further converted into sea-ice thickness. This calculati

Ever since, atmospheric researchers Dr Dörthe Handorf and Dr Annette Rinke at the AWI in Potsdam have been searching for concrete evidence of the interrelations between the sea ice, polar air currents

One and a half years ago the unique Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition , together with its year-round drift through the Central Arctic, came to

Many have seen pictures of the Arctic icescape in the sun, or under the moon during the dark winter months north of the polar circle. Yet, have you ever wondered what it all looks like underneath the

The MOSAiC ATMO (Atmosphere)-Team (Figure 1) made observations of relevant atmospheric properties, processes and interactions over an entire annual cycle while drifting across the Central Arctic with