with a coupled ocean-sea ice model (North Atlantic Arctic Ocean Sea Ice Model, NAOSIM) show a destabilisation of the halocline due to increased freezing in polynyas of Arctic shelf seas. We are planning to [...] of the coupled atmosphere-sea ice-ocean system during different sea ice regimes as a function of spatially heterogeneous surface properties (e.g., albedo, temperature, sea ice, and snow thickness). These [...] global climate models. A focus will be the Barents Sea, where strong surface heat fluxes foster low sea level pressure and shallowdepth export of water and sea ice. The export is compensated for by a corresponding

planned open-ocean infrastructure FRAM (FRontiers in Arctic marine Monitoring) is permanent presence at sea, from surface to depth, for the provision of near real-time data on Earth system dynamics, climate [...] and ecosystem change. 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 [...] towards a better understanding of the effects of change in ocean circulation, water mass properties and sea-ice retreat on Arctic marine ecosystems and their main functions and services. FRAM will implement

of a radioactivity system in a sensors’ network at the North Sea Download talk as pdf 09.11.2023, 11.00 Dr. Boris Cisewski, Thünen Institute of Sea Fisheries: Vertical Migration of Pelagic and Mesopelagic [...] Helmholtz Centre for Polar and Marine Research. Development of nature conservation measures for the North Sea - Project RESTORE No download available. 14.03.2024, 11:00 Alexandre Le Moal, Alfred-Wegener-Institute [...] Mesopelagic Scatterers From ADCP Backscatter Data in the Southern Norwegian Sea. Download talk as pdf 14.12.2023, 11:00 Dr. Katharina Seelmann, 4H-Jena Engineering GmbH: From the arctic to the tropic, from the

– e.g. in the continual warming of the shelf seas, heat waves, and oxygen-deficient zones. Karen Wiltshire studied the North Sea and the Arctic shelf seas to determine how climate change and increased [...] research: At the centre of the action Prof. Dr Karen Wiltshire Coastal research Coastal ecology Shelf Sea System Ecology Prof. Dr Karen Wiltshire was the Vice Director of the Alfred Wegener Institute, Helmholtz [...] oysters & co. also hatch and grow, lending the coastal waters far greater biodiversity than the open sea. At the same time, no other ocean region is as intensively used. In many places, coastal protection

s of Survey Areas BS - Beaufort Sea BaS - Barents Sea CAO - Central Arctic Ocean CS - Chukchi Sea FS - Fram Strait GS - Greenland Sea LaS - Laptev Sea LiS - Lincoln Sea IceBird Impressions IceBird-Impressions [...] information of the sea ice surface topography. This information is used to estimate the roughness of the sea ice surface as well as freeboard, a crucial parameter for remote sensing of sea ice thickness. Snow [...] preparing for a survey flight over sea ice (image: S. Hendricks, AWI) Objectives The AWI IceBird program is a series of airborne surveys to collect measurements of sea ice thickness in the Arctic conducted

01.024 Krüger et al., 2020: Mapping of Eastern North Atlantic Ocean seismicity from Po/So observations at a mid-aperture seismological broad-band deep sea array, doi: 10.1093/gji/ggaa054 Laigle et al., [...] 2011: Continent-ocean-transition across a trans-tensional margin segment: off Bear Island, Barents Sea, doi: 10.1111/j.1365-246X.2010.04873.x Dannowski et al., 2020: Seismic evidence for failed rifting [...] B019100 Dessa et al., 2011: The GROSMarin experiment: three dimensional crustal structure of the North Ligurian margin from refraction tomography and preliminary analysis of microseismic measurements,

Separating the Nordic Seas from the North Atlantic, the magmatic Greenland Scotland Ridge (GSR) has a strong influence on the pathways of the deep, cold water masses formed in the Nordic Sea by down-welling [...] those cold water masses play an important role in setting the properties of North Atlantic Deepwater, ventilating the North Atlantic, and setting the global ocean stratification. Thermal perturbations [...] from glacials to interglacials, large amounts of fresh water were released into the Labrador Sea and North Atlantic Ocean. This release of fresh water occurred through fjords and adjacent troughs that

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 [...] dense waters are formed by cooling and salinification (through formation of sea-ice). The dense water formed in the Weddell Sea makes a major contribution to the Antarctic Bottom Water (AABW), which fills [...] Total CO2 (NCT) and Oxygen within the Weddell Sea at the Prime Meridian. Displayed are linear trends in the Antarctic Surface Water (top) and Weddell Sea Bottom Water (WSBW, bottom). Statistically significa

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

project. Main goals of the hatchery are to produce seed oysters for native oyster restoration in the North Sea and to address relevant research questions in the field. The European flat oyster is functionally [...] techniques with the defined goal to produce spat for mid- and large-scale restoration measures in the North Sea. This requires adaptation and optimization of commercial production techniques, which includes a [...] species ( Rhodomonas salina, Isochrysis galbana and Chaetoceros neogracilis ), native to the German North Sea around Helgoland. The microalgae production is a crucial part of hatchery production. Here, parameters