• The Arctic Ocean was covered by a shelf ice and filled with freshwater

    marine deposits, the scientists could demonstrate that the Arctic Ocean as well as the Nordic Seas did not contain sea-salt in at least two glacial periods. Instead, these oceans were filled with large amounts [...] amounts of freshwater under a thick ice sheet. This water could then be released into the North Atlantic in very short periods of time. Such sudden freshwater inputs could explain rapid climate oscillations

  • Further Publications

    65-7_18 Huang, X., K. Gohl, 2015: Seismostratigraphic Analysis and Glacial History of the Weddell Sea Region, Antarctica . In: G. Lohmann, H. Meggers, V. Unnithan, D. Wolf-Gladrow, J. Notholt, A. Bracher [...] ISBN 978-3-319-00692-5, pages 69-74 Schefuß, E., M. Werner, B. Beckmann, B. Haese, G. Lohmann, 2015: North-west African hydrologic changes in the Holocene: a combined isotopic data and model approach . In:

  • Crossing the Equator

    Cape Verde Islands at 26 ° C, a cloudless sky and a gentle swell of 2 meters from the north. The hard-earned “sea legs” can rest for now, it could really be worse.

  • Results

    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

  • RACE

    subpolar North Atlantic In RACE we study the variability of the freshwater storage in the Arctic Ocean and the subpolar North Atlantic. We use observations and model simulations of the ocean and the sea ice [...] (Phys. Oceanography) Prof. Dr. Rüdiger Gerdes (Sea Ice Physics) Prof. Dr. Ursula Schauer (Phys. Oceanography) Myriel Horn (Phys. Oceanography) Tamas Kovacs (Sea Ice Physics)

  • PPR_Arctic

    of Greenland Sea only (Fram Strait). The western, sea ice-dominated, part of Fram Strait proved to have short, late (middle May) and time varying phytoplankton blooms. At the marginal sea ice zone of the [...] production values increased in the north-eastern open ocean area of the Greenland Sea, on about 120 mgC/m2 per day for the thirteen years of observations. The Greenland Sea primary production estimates we [...] production of the Greenland Sea and the carbon stored in sediments. Related publications: Cherkasheva, A. (2014) Greenland Sea primary production with respect to changes in sea ice cover . PhD thesis, Department

  • Antarctic Biology

    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

  • Global time series resources

    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

  • Food web models in politics and management

    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

  • Open ship and Lab

    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