inside the ocean. They can grow as large as skyscrapers, travel thousands of kilometres and have a major impact on the transport of heat and nutrients. When they break, the surrounding ocean water is mixed [...] mixed. Oceanographer Dr Friederike Pollmann and her new Junior Researcher Group Artemics (Arctic internal wave energetics and mixing and their interdependence with sea ice in changing climate conditions) [...] conditions) at the Alfred Wegener Institute want to investigate how these waves work in the Arctic, how they are related to sea ice retreat and what this means for the future.

entire Arctic Ocean during the coldest phases of the Ice Ages. A new study, now published in Science Advances , questions this idea. The research team found no evidence of such a permanent, pan-Arctic ice [...] ice shelf. Instead, the Arctic Ocean appears to have been covered by seasonal sea ice, allowing open water—and life—to persist even during the harshest glacial periods of the past 750,000 years. This discovery [...] discovery sheds new light on how the Arctic has responded to climate extremes in the past—and how it may evolve in the future.

expedition to the Arctic Ocean. Over the next two months, an international research team will analyse the feedback effects between global warming and sea ice retreat in the Arctic Ocean. The investigations [...] ons will focus on the differences in the melting of various sea ice types – representing the Arctic of the past decades, the present and the future. A parallel airborne campaign will complement the me

is thought to be the warming of Atlantic water that flows from Europe’s Norwegian Sea into the Arctic Ocean, passing through the Barents Sea and the Fram Strait in the process. However, not all the Atlantic [...] In the last few decades, the Arctic sea ice has receded ever further, including increasingly in winter when the extent of sea ice is at its most prominent. One of the main drivers of this development is

ocean mixing, and ice melt Motivation The Arctic sea ice has experienced a longterm decline during the summer months. Data from a recent Arctic expedition reveals large gradients in ocean surface temperature [...] understanding of meltwater spreading and ocean mixing during summertime. Dataset • Infrared photography of ocean and ice surface temperature. • in situ near-surface ocean temperature measurements between and [...] Ocean temperature around melting ice floes Goal of the study - Characterize small-scale ocean temperature distribution around ice floes - Interpret the temperature distribution in terms of ice drift, ocean

German Arctic Office The Arctic has become a key area where changes may raise complex sociopolitical issues of global importance. The development of the Arctic will affect Germany, Europe and the whole [...] working in the Arctic for more than 30 years. It is one of the few institutions worldwide with long-term interdisciplinary scientific research the northern polar region and the Arctic Ocean - from the seabed [...] in the Arctic Region, and informs German stakeholders from science, politics and industry with consitent information from the global Arctic research community. Forums and Events The German Arctic Office

UN Ocean Conference 2025 The UN Ocean Conference (UNOC 2025) will take place from June 9 to June 13, 2025, in Nice, France. As the third edition of the United Nations Ocean Conference, it will be jointly [...] UNOC German Komitee of the UN Ocean Decade Antarctica InSync AWI @ UNOC 2025 Women of Arctic Science AWI photographer Esther Horvath will give a lecture on “Women of Arctic Science” at the UNOC on June [...] to accelerate and mobilize efforts to protect and sustainably manage the oceans, seas, and marine resources. It will gather ocean experts from political, scientific, civil society, and business sectors

Thorium in the Arctic Ocean The Transarc expeditions together with earlier Polarstern campaigns have yielded a unique time series of the chemical and physical properties of the Central Arctic Ocean (CAO). Only [...] anthropogenic carbon is taken up by the ocean, and glacial ocean carbon storage in the deep Southern Ocean is well established ( Brovkin et al., 2012 ). Changes in Southern Ocean carbon uptake and its export to [...] of mud EXC 2077: The Ocean Floor – Earth’s Uncharted Interface The ocean floor, which makes up 71% of the Earth’s solid surface, lies an average of 3,700 meters beneath the ocean surface. The difficulties

European coastline. The project belongs to the EU Mission Restore our Ocean and Waters, and is a member of the Lighthouse for the Arctic and Atlantic Basin. Innovative solutions for marine restoration will [...] will be demonstrated in five different environments across a latitudinal gradient, from the high-Arctic Svalbard at 79°N to the Madeira archipelago at 33°N. CLIMAREST will be developed on a latitudinal gradient

is to characterize the key processes that determine the observed sea ice, ocean, and ecosystem changes in the Central Arctic Ocean during meltseason. The process studies and continuous observations of CONTRASTS [...] (Graphic: Alfred-Wegener-Institut) Regime 1: Future Arctic (Photo: Marcel Nicolaus) Regime 2: Present Arctic (Photo: Marcel Nicolaus) Regime 3: Past Arctic (Photo: Marcel Nicolaus) Objectives The overall objective [...] is to characterize the key processes that determine the observed sea ice, ocean, and ecosystem changes in the Central Arctic Ocean during melt season. We will investigate the causes and consequences of