Beneath the pack ice of the Arctic Ocean, which is usually only a few meters thick, lies a still relatively unknown world at a depth of several thousand meters. Research cruises help to explore these areas. Image: Dr Michael Wenger One often hears that the polar...
Frazil ice forms under the sea surface and causes the formation of cold, dense water. Photo: Masato Ito The global climate is significantly influenced by ocean currents. The most significant of these is the global conveyor belt, also called the thermohaline...
Belugas are highly communicative animals and in the groups there is a lot of whistling and clicking as this is the only way the animals can find their way around and communicate with each other. This makes them vulnerable to underwater noise. Picture: Dr Michael...
The amounts of fresh water flowing into the sea from the melting Antarctic ice sheets have the potential to provide sufficient cooling on the surface by increasing sea ice formation to slow down the melt there. But the advancing warming in other places would cause the...
The Arctic Ocean covers an area of almost 14 million square kilometres, surrounded by continents and which is covered (to a large extent) by ice. Since it has only two inputs/outputs, it is usually divided into a Eurasian and Amerasian area, separated by the...