Sea Ice - Ocean Model FESOM Sebastian Hinck: Atmosphere-Ocean-Ice feedbacks in the global climate Igor Niezgodzki: Impact of CO 2 and gateways on the greenhouse paleoenvironment in the (sub)Arctic region: [...] Pagnone: Simulation of transport and conversion processes of biogeochemical elements in the Southern Ocean, with main emphasis on the iron cycle Nadezhda Sokolova:Ecological modelling to assess marine ecosystems

Pacific sector of the Southern Ocean: implications from sedimentological and geochemical analysis Shuzhuang Wu: Linking Southern Ocean sediment processes to changes in ice-ocean-atmosphere dynamic List of [...] Kolling: Decadal to centennial variability of (sub-)Arctic sea-ice distribution and its paleoenvironmental significance Anne Kremer: Natural variability of Arctic sea ice and its significance for global climate [...] sediment core University of Bremen FB5 O. Esper Description (in German) The Role of High Latitudes Oceans in Climate Change University of Bremen R. Stein, J. Müller Description Clastic Sedimentology: Coast

Because the air temperature is rising, Arctic glaciers are melting more quickly. “Because of this meltwater, more sediments are finding their way into the Arctic Ocean, where they cloud the water,” says Bartsch [...] pinned up on the wall of her laboratory in Bremerhaven is roughly two metres long. In the past, the ocean washed up masses of sugar kelp from the nearby rocky shores on the beaches of Helgoland, where Inka [...] field observations. And the research that Bartsch is conducting in Helgoland has also led her to the Arctic – an opportunity that only few researchers share. “We’re currently monitoring how the ecosystems

(but opposite in sign) as the oceanic component today suggests that ocean uptake of 14CO2 today is close to natural pre-bomb conditions. However, if we extrapolate the oceanic component of the global 14CO2 [...] 14C values in the surface ocean by +15 in the north and by -15 in the circum- Antarctic ocean after the WOCE survey (and interpolating this adjustment linearly between the Arctic and Antarctica), (iii) changed [...] biosphere are indispensable. Over the ocean, in addition to long-term, regionally resolved monitoring, also surface ocean water 14C measurements to determine the ocean–atmosphere 14C disequilibrium are needed

Interview: Ocean Acidification and Fish Swimming in acidifying waters Scientists suspect that the ocean acidification is primarily endangering calcareous organisms such as corals and mussels. But what [...] about the fish having to swim in an ocean which is becoming increasingly acidic? Researchers are currently addressing this question in the national research program on ocean acidification, BIOACID II. Dr Felix [...] small extent by the current ocean acidification. In the interview, the physiologist explains why fish are also reacting sensitively to the reduction of the pH value of the oceans and how he is examining this

German Norwegian Ocean Forum
From the Arctic to the North Sea: this year’s German Norwegian Ocean Forum was held in Bremen’s Übersee Museum. The spotlight topic of the symposium, which was jointly organised [...] by the AWI, Innovation Norway, and the Royal Norwegian Embassy, was ‘The sustainable future of our oceans’. AWI Director Antje Boetius moderated the event.

lives in the temperate zones, but is transported to the Arctic with the North Atlantic Current. Calanus glacialis A species that lives primarily in Arctic shelf areas. Calanus hyperboreus A giant among copepods [...] snack – they are an important element of the food webs of the Arctic. Indirect consequences According to the experiments, therefore, ocean acidification alone presumably cannot have much impact on copepods [...] earlier in spring – that means at a time when the copepods are still dormant in the depths of the Arctic Ocean. Barbara Niehoff’s next research questions are, therefore: What do copepods eat if their favourite

Rachold /AWI) (Photo: Alfred Wegener Institut) What is submarine permafrost? Subsea permafrost in the Arctic is generally relict terrestrial permafrost, inundated after the last glaciation and now degrading [...] Beaufort Sea, we know little about the distribution of submarine permafrost for most of the shallow Arctic Shelf, over 80% of which lies offshore of Eastern Siberia. Degradation rates of the ice-bearing [...] concentration. We need to know more about the current distribution and state of permafrost beneath the ocean, about what cause sit thaw, where and how quickly. This group addresses key questions surrounding

snow isn’t just snow. There are clear differences if you compare, e.g., the Arctic and Antarctic. While the snow on the Arctic sea ice is completely melting over the course of the year, and so-called meltwater [...] effectively it insulates, and as such reduces the transfer of heat from the ocean to the atmosphere. However, the less warmth the ocean gives off, the thinner the sea ice remains. Therefore the snow not only [...] 23.09.2019 Scientists Prepare for Year-Long Expedition to Arctic Center Find out more > EOS | 06.09.2019 Light Permeates Seasonally Through Arctic Sea Ice Find out more > Dialogue & Lectures Lecture | 09

the international level and within the framework of intergovernmental bodies (eg SCAR, IASC, ATCM, Arctic Council, CCAMLR, OSPAR). The office is coordinating the AWI contributions and will perform as an [...] communication for inter-institutional networks (DAM, DKK, Helmholtz Climate Initiative, KDM, UN Decade of Ocean Science, IPCC, IPBES, Leopoldina, etc.), in which the research contributions of the AWI / of Helmholtz