Greenland Ice-Core Project (EastGRIP) is a drilling project aiming to retrieve a deep ice core in North-East Greenland. The drilling site is on a dynamically active location, where the surface flow velocities [...] previous deep ice core sites. It is located at the onset of the largest ice stream in Greenland (NEGIS - North-East Greenland ice stream). Ice streams are not very well represented in large scale ice sheet models [...] if not prescribed by inversion methods based on observed surface velocities. Their contribution to sea level projections is thus not very well constrained and a source of uncertainty. Three regimes can

glacier in North East Greenland? To answer this question we needed the bathymetry at the shelf edge of 79th glaciers As ships cannot access this area, we planned a 36 km seismic cross line on the sea ice. This [...] allowed us to collect CTD profiles (Conductivity, Temperature, Density) of the seawater. To get reliable sea ice conditions we left early, in April 2016. Conditions were cold, -25°C to -40°C causing hardware

_________________________ Sylt (North Sea) The island Sylt in the North Sea (Photo: Alfred Wegener Institut) Sylt is the northernmost island of Germany located in the Wadden Sea of Schleswig-Holstein. Scientific [...] Offshore diving in the German Bight and North Sea Research Vessel Heincke (Photo: Alfred Wegener Institut) Dive missions in the German Bight and the North Sea are conducted from the research vessel RV [...] For sientific divers, the rocky island of Helgoland provides a unique biotope in the Southern North Sea (German Bight). Dive sites around Helgoland are typically characterized by hard bottom or sandy

Boetius, AWI, Bremerhaven The FRAM Ocean Observing System will be installed in the gateway between the North Atlantic and the Central Arctic, representing a highly climate-sensitive and rapidly changing region [...] Lochte, AWI, Bremerhaven The ROBEX alliance aims to pool expertise gained in lunar expeditions and deep sea investigations to identify, develop, and test technologies that will allow the exploration of highly [...] inaccessible terrain, including areas on earth with extreme environmental conditions, such as the deep sea and Polar Regions, as well as other planets. The alliance will focus on developing a modular, robotic

(Photo: Alfred-Wegener-Institut) LC-MS/MS chromatogram of a planktonic field samples from the North Sea containing several phycotoxins. Chemical structures of several phycotoxin classes. Current list

Meadows Water Meets Land – Coastal Hydrography and Geology The Wadden Sea Over the Course of Time The Wadden Sea Ecosystem Wadden Sea Station Conference Rooms List Oyster Trail Team Guest houses Guest Research [...] Evolutionary Ecology Team Research Highlight: Community Ecology Team 100 years of Wadden Sea Station Wadden Sea Station Shelf Sea System Ecology Working Groups Ecophisiology of invertebrates Long-term observations [...] sedimentary flux PEBCAO Team Teaching&Outreach Deep-Sea Ecology and Technology Team Research Food for the deep sea Microbial communities in the deep sea ABYSS Higher life at the deep seafloor Experimental

dynamics and development of upper ocean temperature and stratification in the Subarctic North Pacific and its marginal seas. A major effort is the development of a detailed stratigraphic framework in order to

sources are in deep-sea sediments. We attempt to use this new tracer as a tool to quantify the upwelling rates of deep water masses (including NADW) that enter the Southern Ocean from the north. [...] deep ocean. In an analogous way it is also used for the study of resuspension rates near the deep-sea floor. 230Th and 231Pa We know the production rate of 230 Th (Half-life 75400 y) and 231 Pa (half-life

future projection experiments (e.g., sea ice outlook).We have been developed data assimilation system which exploits observed sea ice concentration, ice thickness and sea ice drift obtained from satellite [...] successfully applied to North Atlantic/Arctic Ocean Sea Ice Model (NAOSIM) developed at the Alfred Wegener Institute (AWI). We are currently working to apply the systems to Finite-volumE Sea ice-Ocean Model (FESOM2) [...] fields”, which are a set of ocean and sea ice variables optimally combining observations and a model. The analysis fields are applied for a variety of ocean and sea ice studies in the Arctic Ocean, and

sediments are used to reconstruct different climate variables as e.g. past changes in sea surface temperature and sea-ice variability (Uk ' 37 ; IP 25 ) or circulation dynamics (δ 13 C; δ 18 O). Ultra h [...] et al. (2014) Figure 2: Detailed Comparison of sedi-ment proxy records from the subpolar North Pacific and North Atlantic realm from 138 to 70 ka on their established time scales (Max et al., 2014). Source: