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

_________________________ 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

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

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

phytoplankton data collected in the Antarctic, particularly for the Weddell Sea and adjacent areas such as the Scotia and Lazarev Seas Summary of Polarstern stations in the Antarctic where zooplankton was sampled [...] Potter Cove Potter Cove (Co-ordinates: 62°14´S, 58°40´W' ) is located on King George Island north of the antarctic peninsula one of the fastest warming areas on earth. The time series at and around Potter [...] gov/copepod/time-series/de-30401/ ). Principal investigators: Doris Abele: Hydrography, biology, ecology, sea ice. Irene Schloss: Hydrography, biology potter_cove_Anders_Torstensson.jpg (Photo: Alfred-Wegener

for Coastal and Arctic Seas: The aim of the project is the establishment of a long-term observation network of automated sensors on buoys, gliders etc. Focus area is the North Sea, but a prototype of the [...] :SAHFOS runs the Continuous Plankton Recorder surveys, that initially concentrated on the North Sea and North Atlantic (in operation since the 1930s) but CPRs are now deployed in many regions of the world [...] n here. HOTS : Hawai Ocean Time series: Time series operated at the open ocean site ALOHA in the North Pacific Subtropical Gyre. hahana.soest.hawaii.edu/hot/hot_jgofs.html I IACS : International

Sylt-Rømø Bight, Northern Wadden Sea C.de la Vega, S. Horn, D. Baird, D. Hines, S. Borrett, R. Asmus, H. Asmus 13:30-13:45 Are grey seals exerting a top-down control in the Baltic Sea? D. Costalago 13:45-14:00 [...] Please contact Dr. Ulrike Schückel or Dr. Sabine Horn to sign up for the workshop. Location Wadden Sea Station on Sylt of the Alfred- Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung. Costs [...] Stellenbosch, South Africa) Torsten Berg (MariLim, Germany) Prof. Dr. Stuart Borrett (University of North Carolina Wilmington, USA) Prof. Dr. Victor de Jonge (University of Hull, The Netherlands) Prof. Dr

is the case in many other time series around the world. This facilitates a unique insight in the North Sea ecosystem but also means a lot of work on the ships as well as in our laboratories, where the different

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

temperatures for multiple years along the Greenwich meridian from North (left) to South (right). Vertical extent from the sea surface (top) to the sea floor (white). Fig. 8: Ocean temperatures near the ocean bottom [...] rn-most extent of the Weddell Gyre, where at least some of the AABW is believed to escape to the North. Along with (electronic) CTD measurements, water samples are collected throughout the water column [...] and carbon constituents. Measurements of Total CO 2 in the Surface and Bottom Waters of the Weddell Sea, reveal a steady CO 2 increase, of likely anthropogenic origin, as surface water, charged with ant