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moderately rough arctic sea ice and take ridge height and distribution into account. They are well proven for applications in simulations of flow situations in the northern polar ocean. To prove if they [...] leads and polynias For the energy and moisture exchange between the atmosphere and the ice covered ocean, leads and polynias play an important role. This is documented by many modelling studies, but only [...] sea ice have a significant effect on the energy exchange between the atmosphere and the ice covered ocean. Uncertainties in the representation of sea ice albedo contribute considerably to the differences

moderately rough arctic sea ice and take ridge height and distribution into account. They are well proven for applications in simulations of flow situations in the northern polar ocean. To prove if they [...] leads and polynias For the energy and moisture exchange between the atmosphere and the ice covered ocean, leads and polynias play an important role. This is documented by many modelling studies, but only [...] sea ice have a significant effect on the energy exchange between the atmosphere and the ice covered ocean. Uncertainties in the representation of sea ice albedo contribute considerably to the differences

Open-Water Aquaculture on Gran Canaria Master Thesis Title: Response of Key-Species of Benthic Sub-Arctic Macrophytes to Warming jan.jacob @ awi.de Alfred Wegener Institut Am Handelshafen 12 27570 Bremerhaven [...] aims to overcome these challenges by developing novel approaches for Ulva cultivation in the open ocean using floating structures made from renewable materials. At the AWI aquaculture facilities, we are

under pressure. However, jellyfish in the world’s oceans could actually benefit from the rising water temperatures – also and especially in the Arctic Ocean, as researchers from the Alfred Wegener Institute [...] Institute have now successfully shown. In computer models, they exposed eight widespread Arctic jellyfish species to rising temperatures, sea ice retreat and other changing environmental conditions. The result: [...] triple the size of its habitat – with potentially dramatic consequences for the marine food web and Arctic fish populations. The study was just released in the journal Limnology and Oceanography.

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

environmental conditions for marine life. She has participated in expeditions to the Arctic and Antarctic alike, and coupled ocean and Earth system models are now her primary research tool. She is a member of [...] carbon budget and ocean carbon research. With regard to the annual carbon budgets prepared by the Global Carbon Project, she is responsible for coordinating and analysing estimates the ocean carbon sink. Dr [...] dissertation on the marine sciences for her doctoral thesis, entitled “Processes in the Southern Ocean carbon cycle: Dissolution of car- bonate sediments and inter-annual variability of carbon fluxes”

fate of the Arctic Ocean in times of climate change Link to project webpage ARJEL To better understand the role of jellyfish in Arctic seas, the Helmholtz Young Investigators Group ARJEL (ARctic JELlifish) [...] Effect in the Arctic Ecosystem – is to assess the consequences of the decline in silicic acid concentration in the inflow of North Atlantic water into the Eurasian Arctic for the Arctic marine ecosystem [...] project webpage SO-CLIM Linkt to project webpage oceanPeak ERC Starting Grant OceanPeak COLDSPOT The project investigates where and why Arctic soils act as sinks for methane and nitrous oxide. link project

Double-Trouble Resilience and vulnerability of the central Arctic Ocean food web to cumulative stress by warming and anthropogenic pollution. Head of Group Dr. Doreen Kohlbach Further members of the Junior [...] for polar marine food webs. Previous research suggests that pelagic food webs in the Central Arctic Ocean (CAO) are highly dependent on ice-associated food sources (Fig. 1), but how prevailing trophic [...] waters, riverine input and marine traffic will bring more anthropogenic pollutants, even to remote Arctic regions, where they are entrained in water and sea ice, and transferred along the marine food chain

ervice (Japan) O perational m onitoring and forecasting G lobal atm osphere, ocean and sea ice observations U se atm osphere and ocean system s for the reanalyses (JR A -55). P olar observations are used for [...] for the operational forecasting. The developm ent of im proved ocean-sea ice reanalysis. W ill use S IC , S IT, and velocity and lim ited ocean in-situ observations 5 days 10km B etter initializing sea ice [...] assessm ent of ten ocean reanalyses in the polar regions. C lim ate D ynam ics. D oi:10.1007/s00382-018-4242-z M eteorological S ervice (M étéo- France) Local, regional and global ocean and atm osphere inform