means that they transport more ice from the land’s interior to the ocean, which in turn causes the sea level to rise. Furthermore, the surface of Greenland’s ice sheet is melting more extensively and is [...] Now (Video) | 14.09.2020 Climate Crisis: Ice breaks away from Arctic's largest remaining shelf Find out more > Dialogue & Lectures Lecture | 04.03.2022 The Complex Life of Ice Sheets TEDx Talks Talk [...] 06.03.2017 How the Greenland Ice Sheet is loosing mass forced by the ocean Summit on Climate Change Policy advice

is now bringing back from a Polarstern expedition to the Central Arctic. After a four-month-long Arctic season, the Alfred Wegener Institute’s research icebreaker is expected to arrive back in Bremerhaven

deep sea has started to increase and today we know that the deep ocean on planet Earth hosts an enormous diverse deep-seabed life. Biodiversity in the deep sea depends among other parameters on water [...] rate of recent climate change challenges the resilience of Arctic life. The entire system is likely to be severely affected by changing ice and water conditions, varying primary production and food [...] transition zone between the northern North Atlantic and the central Arctic Ocean, and to determine the factors controlling deep-sea biodiversity, the Alfred Wegener Institute established the LTER (Long-Term

planned open-ocean infrastructure FRAM (FRontiers in Arctic marine Monitoring) is permanent presence at sea, from surface to depth, for the provision [...] system dynamics, climate variability and ecosystem change. The FRAM Ocean Observing System will be installed in the gateway between the North Atlantic and the Central Arctic, representing a highly [...] Schewe, I., Klages, M., Boetius, A. (2013): FRAM - FRontiers in Arctic marine Monitoring: Permanent Observations in a Gateway to the Arctic Ocean. OCEANS - Bergen, 2013 MTS/IEEE. doi:10.1109/OCEANS Bergen

Understanding the ocean, and the complex physical, biological, and biogeochemical systems operating within it, is a challenge for the opening decades of the 21st century. The establishment of multidisciplinary ocean observatories by the Alfred Wegener Institute will help to provide the means to accomplish this goal. Ecological time-series work [...] in 1999. Since 2014, the establishment of the FRAM (Frontiers in Arctic marine Monitoring) Ocean Observing System improves our monitoring capacities. LTER Observatory HAUSGARTEN Ocean Observing System

or a certain distance from the seafloor. On their way through the ocean they carry different instruments to measure several parameters from the temperature of the water to the amount of light penetrating the ocean. At the end of a mission the AUV and the supply vessel meet at a preprogramed position and the AUV is recovered. AUV enable us to [...] with an Autonomous Underwater Vehicle: Payload structure and arctic operations. OCEANS - Bergen, 2013 MTS/IEEE, doi:10.1109/OCEANS-Bergen.2013.6608043. Wulff, T., Lehmenhecker, S., Hoge, U. (2010).

Since the marginal ice zone of the Arctic Ocean is a highly dynamic environment, it is crucial to track the position of the ice edge in order to define AUV (Autonomous

The vertically facing towed camera system OFOS (Ocean Floor Observation System) is used to assess large-scale distribution patterns of larger epi-benthic organisms and other objects ( [...] invertebrates from the deep-sea observatory HAUSGARTEN (Fram Strait, Arctic Ocean). Marine Ecology Progress Series 602: 15-29. Taylor, J., Krumpen, T., Soltwedel, T., Gutt, J., Bergmann, M. (2017): Dynamic [...] interannual variability of megafaunal assemblages in the Arctic deep sea: preliminary results from the HAUSGARTEN observatory (79ºN). Deep-Sea Research I 58: 711-723.

Forschung, BMBF ), intend to assess the influence of sea-ice and ocean dynamics in the Laptev Sea and to investigate the ecological consequences of environmental changes in key regions of the transpolar drift, and to study effects of ocean acidification on marine organisms and their habitats. Furthermore, the Deep-Sea Research Group leads the Helmholtz infrastructure project FRAM (Frontiers in Arctic marine Monitoring) and is also partner of the Helmholtz alliance ROBEX (Robotic Exploration of Extreme Environments) of the Helmholtz

meiofauna at the LTER Observatory HAUSGARTEN in Fram Strait (Arctic Ocean). MDPI - Diversity 12 (7). doi: 10.3390/d12070279 Käß, M., Vedenin, A., Hasemann, C., Brandt, A., Soltwedel, T. (2019). [...] invertebrates from the deep-sea observatory HAUSGARTEN (Fram Strait, Arctic Ocean). Marine Ecology-Progress Series 602: 15-29. Grzelak, K., Kotwicki, L., Hasemann, C., Soltwedel, T. (2017): Bathymetric patterns [...] ): The interannual variability of megafaunal assemblages in the Arctic deep sea: preliminary results from the HAUSGARTEN observatory (79°N). Deep-Sea Research I 58: 711‑723.