suitable ice floe, where they will set up the research camp for their one-year-long drift through the Arctic Ocean. Consequently, one of the most important milestones in the expedition has been reached ahead of

better understand and quantify the role of clouds in the lower Arctic atmosphere. A special focus is on the amplified climate change in the Arctic. To that aim measurements during ACLOUD and AFLUX were/are [...] Airborne Observations In, Below and Above Arctic Clouds Map of the areas for aircraft operation illustration the coordination activities at Polarstern and Ny Alesund (Photo: Alfred-Wegener-Institut) ACLOUD [...] research institutes (listed below) embedded in the Transregional Collaborative Research Centre TR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms (AC)³

better understand and quantify the role of clouds in the lower Arctic atmosphere. A special focus is on the amplified climate change in the Arctic. To that aim measurements during ACLOUD and AFLUX were/are [...] Airborne Observations In, Below and Above Arctic Clouds Map of the areas for aircraft operation illustration the coordination activities at Polarstern and Ny Alesund (Photo: Alfred-Wegener-Institut) ACLOUD [...] research institutes (listed below) embedded in the Transregional Collaborative Research Centre TR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms (AC)³

ut) The Arctic boundary has been observed over many years to better understand and monitor the exchanges between the Arctic Ocean and its neighboring oceans. The unique geometry of the Arctic—surrounded [...] the Arctic Ocean with hydrographic observation lines (Figure 1). A method to treat the Arctic as a single box bounded by hydrographic lines and land has been developed recent years. This pan-Arctic approach [...] monitor the major oceanic heat and FW exchanges between the Arctic Ocean and surrounding Oceans? (2) Where is the most efficient place to add additional instruments to increase the accuracy of measurements?

Gelatinous zooplankton from the Fram Strait region, Arctic Ocean (Photo: Mario Hoppmann/AWI) Gelatinous zooplankton, comprising cnidarians, ctenophores and tunicates, are known to be major drivers of ecosystem [...] the consequences of range shifts of Atlantic and Arctic jellyfish. A better understanding of jellies´ trophic role is crucial for the rapidly changing Arctic and surrounding shelf seas, responsible for 10% [...] topics currently addressed by ARJEL: How diverse are gelatinous zooplankton communities in the Arctic Ocean? Since gelatinous zooplankton are fragile and easily fragmented, there are some biases associated

of the ocean. In the Arctic Ocean the preconditioning and the subsequent formation of North Atlantic Deep Water (NADW) takes place, this water drives predominantly the global thermohaline ocean circulation [...] energy and matter between the ocean and the atmosphere in the Arctic region have a significant impact on the regional and very likely also on the global atmospheric and oceanic circulations and consequently [...] is one of the most important physical parameters in ocean-atmosphere interactions, particular in regions where sea ice exists like the Arctic Ocean. The geographical distribution of the radiation balance

Elsevier. [ Impact Factor: 3.513 ] Print Ausgabe: 1.1981 - 85.2007 Z 366 Arctic, Antarctic, and Alpine Research. / Institute of Arctic and Alpine Research, University of Colorado. Print Ausgabe: 31.1999 - [...] td-1">Z 2180 Ocean dynamics. / Springer [ Impact Factor: 1.612 ] Print Ausgabe: 52.2001 - 57.2007 Z 2183 Ocean modelling [...] dd tr-187"> eOnly Report of the ... Meeting / Arctic Ocean Science Board. <td class="td-last

for employees, politics and society. As a major research centre, the AWI maintains stations in the Arctic and Antarctic, research vessels and polar aircraft. This is associated with a comparatively high [...] societal options for action. With our research on changes in the atmosphere, the cryosphere, the ocean and the coast, corresponding feedback mechanisms as well as the consequences of climate change for [...] habitats and species and the overall significance of the UN goals for sustainable development for oceans and polar regions and to keeping these issues present in the public consciousness. A particular challenge

amounts of microplastic in arctic sea ice than ever before. However, the majority of particles were microscopically small. The ice samples from five regions throughout the Arctic Ocean contained up to 12,000 [...] patch in the Pacific Ocean, while in turn, the high percentage of paint and nylon particles pointed to the intensified shipping and fishing activities in some parts of the Arctic Ocean. The new study has

design and implementation of sustained observations in both the Arctic and Southern oceans and the development of a truly novel finite-element ocean model. AWI is in the unique position to make the long-term [...] The Changing Arctic and Antarctic WP 1: Role of ice sheets in the earth system WP 2: “Aerosol, water vapour, and ozone feedbacks in the Arctic climate system WP 3: Sea ice – atmosphere – ocean – ecosystem [...] Serripes groenlandicus in a warming, more acidic ocean A. Stark 10:00 - 10:20 Observing microbial biodiversity shifts related to climate change in the Arctic Ocean M. Jacob 10:20 - 10:40 polar bear hall Coffee