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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
Klaus Grosfeld Renate Treffeisen Sina Löschke
One year, one floe – sea-ice research to the extreme
from the Central Arcti
95Focus ice DriftStory 10
How alike the two pictures are: as AWI sea-ice physicist Dr Thomas Krumpen flies over
the scattered remains of what was once the MOSAiC floe and many of its neighbouring
In spring, a variety of algal blooms colour the waters of the
Arctic Chukchi Sea. The inflow of cold, nutrient-rich water
from the Bering Sea provides the phytoplankton with idea
27Focus satellite observation DriftStory 02
Satellite observation is the only way to effectively monitor the
Arctic sea ice on a broad scale. Yet this approach still has its fair s
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
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