Coastal Ocean Dynamics Helgoland Time-Series Coastal Ocean Dynamics Helgoland Time-Series – What are the drivers? • CTD • Turbidity • Fluorescence • PAR • Wind • pCO2 • O2 • ADCP Coastal Ocean Dynamics [...] Productivity & Efficiency of the Biological Carbon Pump and Biodiversity in the present and future ocean. Mission: From Physics to Fish • Increasing human activities and climate change have been shown as [...] 7° 52.788‘E Background…where it all started Background…where it all started Challenges of Coastal Ocean Observations: • Biofouling • Turbidity: Long distance between Camera & Strobe • Limited data sets

refreezing at the sea ice surface dramatically changes the energy exchange between atmosphere and ocean in the Arctic. Melt ponds play a key role in these changes, because they substantially enhance the absorption [...] albedo of Arctic summer ice from satellite optical data. Remote Sensing of Environment, 163, 153-164. doi:10.1016/j.rse.2015.03.012. Rösel, A.; Kaleschke, L., Birnbaum, G. 2012. Melt ponds on Arctic sea ice [...] early summer, when melt ponds started to form. From 9 May to 8 June 2008, we operated in the Canadian Arctic, mainly over the southern Beaufort Sea with Inuvik as airbase for Polar 5 . Sea ice conditions changed

refreezing at the sea ice surface dramatically changes the energy exchange between atmosphere and ocean in the Arctic. Melt ponds play a key role in these changes, because they substantially enhance the absorption [...] albedo of Arctic summer ice from satellite optical data. Remote Sensing of Environment, 163, 153-164. doi:10.1016/j.rse.2015.03.012. Rösel, A.; Kaleschke, L., Birnbaum, G. 2012. Melt ponds on Arctic sea ice [...] early summer, when melt ponds started to form. From 9 May to 8 June 2008, we operated in the Canadian Arctic, mainly over the southern Beaufort Sea with Inuvik as airbase for Polar 5 . Sea ice conditions changed

parameters in the ice-covered, central Arctic Ocean. The concurrent recording of physical, biological and biogeochemical measurements in the atmosphere, sea-ice and ocean for time periods of several months [...] observatory (Graphic: Alfred-Wegener-Institut) The properties of the atmosphere, sea-ice and the polar oceans, and feedbacks between these domains play an important role in global climate. At the same time, [...] Nicolaus @ awi.de Prof. Dr. Benjamin Rabe +49(471)4831-2403 Benjamin.Rabe @ awi.de Deployment of an ocean profilers in the sea-ice (Photo: Alfred-Wegener-Institut)

habitat under the snow and ice cover of the Arctic Ocean. The results of the study now published in the New dataset reveals biological “treasure trove” of Arctic Ocean A major new project will help benchmark [...] in the middle of the Arctic Ocean. The results from Stockholm University, the Alfred Wegener Institute and colleagues in the European Fisheries Inventory in the Central Arctic Ocean (EFICA) Consortium are [...] An entire year trapped in the Arctic ice MOSAiC - Multidisciplinary drifting Observatory for the Study of Arctic Climate It is the largest-scale Arctic research expedition of all time: From autumn 2019

first aerial survey flights over the Arctic this year. The flights, which will extend far into the Central Arctic, will support the investigation of the atmosphere and sea ice, and supplement the MOSAiC [...] expedition’s extensive research agenda. Core research priorities include cloud formation over the Arctic Ocean and the question as to whether the sea ice observed during MOSAiC was generally thicker or thinner [...] Arctic
Following a five-month mandatory delay due to the coronavirus pandemic, on August 30th the two German polar research aircraft Polar 5 and Polar 6 will launch from Svalbard to conduct their first

Earth compartments. MOSES primarily targets four events: heat waves, hydrological extreme events , ocean eddies and the thawing of permafrost . Hydrological extreme events Recent global projections predict [...] the Northern Hemisphere’s land mass and a large portion of the Siberian and North American shelves. Arctic warming occurs at a much higher rate (by up to 8 to 10 times) compared to the rest of the world.

Labrador shelf was covered by a permanent but floating ice mass such as today’s ice cover of the Arctic Ocean. We finished our geological sampling work yesterday. Today and tomorrow are dedicated to collecting [...] the retreating ice stream. Instead, we aim at reconstructing the dynamic history of Labrador shelf ocean currents through the past few thousand years with these cores. At the end of the last glacial, when [...] large-scale environmental catastrophe, and it resulted in a significant disturbance of the established ocean current system on the Labrador shelf. On the long sediment cores, we will carry out different types

Observations in the Arctic Ocean The Arctic is an environment where global climate change is strongly manifested. The Arctic Amplification, represented by the atmospheric warming trend in the Arctic being about [...] Main Research Topics Physical Oceanography of the Arctic Ocean The Arctic Ocean and the Nordic Seas are integral parts of the Atlantic meridional overturning circulation, and hence key regions for the [...] the global climate. The perennial sea ice cover makes the Arctic Ocean distinct from subarctic oceans – the presence of… Find out more PhytoOptics Analytical bio-optical techniques are applied to extract