first move from the Antarctic Peninsula/ northern Weddell Sea southeastwards to a position close to Neumayer Station (70°39’ S, 08°15’ W, ~600 km north of Kohnen Station) and then continue to move to the east [...] Weddell Sea southeastwards to a position close to Neumayer Station and become stationary there. (12% of events). Category IV: Lows which first move from the Antarctic Peninsula/ northern Weddell Sea sout

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:

how the SHW interacted with past changes in sea surface temperature and how this is linked to changes in Antarctica. We aim to reconstruct precipitation and sea surface temperature on decadal to millennial [...] southern hemisphere westerly wind belt (SHW) encircles Antarctica, tracking the mid-latitude meridional sea surface temperature gradient (e.g. Lamy et al., 2010 ). The SHW is an important component of global [...] understanding of the dynamics of the SHW and temperature evolution. To this end, we investigate a north-south transect of marine and lake sediment cores spanning the range of the SHW (Fig. 1). From these

Institute to investigate how rising temperatures and the retreat of arctic sea ice are increasingly eating away at coasts in the High North. German TV station films on Muostakh (Photo: Alfred Wegener Institut) [...] continues to recede.” Secondly, the waters of the sea and the Lena River are gnawing away at Muostakh’s frozen subsurface. “In the past, a thick layer of sea ice protected the coasts from erosion practically [...] bluffs of ice-rich, frozen ground still defy the currents of the Lena River and the waves of the Laptev Sea, there will be nothing left. The cause: coastal erosion. Every year, Muostakh loses up to 20 metres

Ocean receives freshwater by run-off from Asia north of the Himalaya. Large rivers carry freshwater from this enormous catchment area into the Eurasian shelf seas. Ocean waters with salinities below the average [...] balance of the Arctic Ocean. Such waters flow in from the Nordic Seas. An interchange of waters between the Arctic and the Nordic seas results in in seasaw fluctuations in fresh water content between the [...] Current and sea ice flux through Fram Strait. Inflow of saline water from the South is equivalent to a fresh water export. Fresh water from the Arctic strengthens the stratification in the Nordic Seas and the

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

Arctic Ocean Madiba Sea Mount, south of South Africa, discovered 2013 with RV Polarstern Current-induced seabed structures at the Southern Mozambique Ridge Iceberg scours on the shelf north of Svalbard Contact [...] Bathymetry Bathymetry is the measurement of the seafloor topography. Unlike the land surface, the sea bed surface cannot be measured directly via airborne optical methods (e.g. radar). It requires an echo

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

are using old fishing nets as nesting material in their nesting colony at the island Helgoland (North Sea/Germany) (Photo: Alfred-Wegener-Institut) LITTERBASE needs your support Our database should be complete [...] This suggests the presence of hidden sinks that have not been taken into account (e.g. deep seafloor, sea ice, marine life) Are there global patterns in the distribution of litter and microplastics? What is

cracks develop in the huge closed sea ice layer. As we approach the 79° North Glacier, the situation on the Polarstern still seems tricky. Poor visibility and a lot of sea ice and icebergs protruding 10 to [...] are. Is it mainly the warming sea that gnaws on the ice tongues from below? This is the question AWI oceanographer Janin Schaffer examines using the Greenlandic 79° North Glacier as an example. In order [...] the Polarstern to the 79°North Glacier I realise how close we were to our destination. We want to go where no ship has ever been - to the eastern glacier front of the 79° North Glacier in the northeast