Thomas Krumpen

Arctic sea ice: a chain reaction Dr Thomas Krumpen, sea ice physicist and expert for satellite analyses at the Alfred Wegener Institute. Sea ice Application of satellite data Arctic Ocean IceBird For the [...] reference data set on the development of Arctic sea-ice cover worldwide. Those surveys indicate that the thickness of sea ice leaving the Arctic Ocean towards the North Atlantic has steadily decreased since 2001 [...] involved in the formation and disappearance of sea ice. With that goal in mind, we at AWI are exploring the thickness and surface conditions of Arctic sea ice. We measure both properties in several key

Ilka Peeken

Sea ice: a habitat for specialists Dr Ilka Peeken, marine biologist at the Alfred Wegener Institute. Biodiversity Polar regions Plastic Sea Ice Climate change is especially putting the polar regions under [...] al changes in the Arctic result primarily from the decline in the area of sea ice and the decrease in its thickness, since sea ice itself represents a fundamentally important habitat. Specially adapted [...] tiny particles can then easily be ingested by sea life and accumulate in the food chain, as far up as fish. We have found high levels of microplastic in sea ice. The aim of our research is now to gain a

Christian Buschbaum

Here, the newcomers can establish themselves if the living conditions are suitable. Today, on the North Sea coast, one or two invasive species are discovered every year. These frequently originate in Pacific [...] Dr Christian Buschbaum, marine ecologist at the Alfred Wegener Institute. Coastal research Wadden Sea Invasive species Around the globe, coasts and their communities are currently changing more rapidly [...] Buschbaum jpg | 359 KB Media Dialogue & Lectures Lectures | 20.01.2020 Species invasions in the Wadden Sea – How introduced organisms change our coastal ecosystems FU Berlin Policy advice Committee on the

in-situ

South China Sea and Sulu Sea. Biogeosciences Discuss., 10, 12115-12153, doi:10.5194/bgd-9-4727-2012. Cherkasheva, A. (2014) Greenland Sea primary production with respect to changes in sea ice cover. PhD [...] RV SONNE, SO243 (ASTRA), Guayaquil (Equador) to Antofagasta (Chile), Oct 2015 RVHeincke, He462, North Sea, Bremerhaven to Sogne Fjord and back, Apr-May 2016 RV Polarstern, PS99, Fram Strait, Bremerhaven [...] 2017 RV Polarstern, PS113, Atlantc Ocean, Punta Arenas-Bremerhaven, May-Jun 2018 RVHeincke, He535, North Sea, Bremerhaven to Hegoland, Jun 2019 RV Polarstern, PS121, Fram Strait, Bremerhaven to Tromsö, Aug-Sep

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.

Offshore Site Selection

sustainable and multifunctional use of marine areas in heavily used oceans on the example of the North Sea Objectives: The project aims to create a multi-use road map as a tool for the future use of marine [...] multi-trophic aquaculture (IMTA)-system. Model organisms are fish (turbot Scophthalmus maximus , sea bass Dicentrarchus labrax ) as fed aquaculture candidates, bivalves (mussels Mytilus edulis , oysters

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)