Content type

  • PETA-CARB in the Media

    focusing on the work of 10 AWI researchers including Frank . 2016-03-04 In an article in the New Scientist about the vanishing of large lakes Guido is one of the interview partners. 2016-02-08 On the radio (98 [...] University of Hamburg on the subject of " How dangerous is the thawing of the permafrost? " 2015-05-06 Science journalist Gerald Dietz from Märkische Allgemeine Zeitung reports on the latest results of AWI [...] soils and the release of greenhouse gases. 2015-04-10 On the occasion of the journey of the Federal Research Minister Johanna Wanka to AWIPEV station on Spitsbergen for getting an overview of climate change

  • Antarctic hotspot: Fin whales favour the waters around Elephant Island

    little about the life of the world’s second-largest whale. That makes the findings of researchers from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) and the Johann [...] Antarctic Peninsula
    During the era of commercial whaling, fin whales were hunted so intensively that only a small percentage of the population in the Southern Hemisphere survived, and even today, marine [...] where in the peak month of May, so many fin whale vocalizations can be heard that the individual calls merge into a veritable chorous of sound, as the research team now reports in the journal Royal Society

  • West Antarctic Ice Sheet

    and paleo-current models of the continental rise and shelf of the Pacific margin of West Antarctica The results call for an urgent case of scientific drilling, in particular in the Amundsen Sea Embayment [...] reconstruction of the dynamic history of Antarctic Ice Sheet expansion and retreat since the onset of Southern Hemisphere glaciation improves our understanding of ice sheet growth and melting processes and [...] that exceed those of any other Antarctic outlet glacier outside the Antarctic Peninsula. The incursion of warm Circum-Polar Deep-Water into the deeply incised glacial troughs of the shelves has been recognized

  • Passive Acoustic Monitoring - AWI OZA

    acoustic recording unit like the ones used by the PAM recorders in HAFOS. This takes advantage of the recorder now sitting just under the icy surface of the ice shelf, accessible by the Neumayer overwintering [...] Strait, respectively. See the maps to the right for of the recording sites occupied so far. Please note that not all sites are equipped with recorders at all time. Maps of the Arctic and Antarctic with [...] Tracking of Antarctic marine mammals) The aim of the PASATA project was to use time-synchronized passive acoustic recorders to localize vocalizing marine mammals in the Atka Bay area. Alongside the passive

  • Current research

    subtropical ocean is expanding the tropics The observed anomaly of sea surface temperature during the last 5 years of the satellite age (2015-2019) in relation to the first 5 years of the satellite age (1982-1986) [...] [11 July 2018] The melting of glaciers on one side of the globe can trigger disintegration of glaciers on the other side of the globe, as has been presented in a recent paper by a team of AWI scientists [...] . Proceedings of the National Academy of Sciences of the United States of America (PNAS). doi: 10.1073/pnas.1714754115 . 2017 New findings on the past and future of sea ice cover in the Arctic Scientists

  • UN Decade of Ocean Science

    UN Decade of Ocean Science Spotlight on the Ocean It’s a world full of riddles: though the ocean shapes the face of our ‘blue planet’, covering 70 percent of its surface, we still know far too little about [...] safety. In the context of the Decade, all of this knowhow is to be made available worldwide. And last but not least, the goal is to raise awareness for the economic, social and cultural value of the ocean; [...] network that investigates open research questions and develops solutions for the preservation and sustainable use of the ocean. Its motto: “The science we need for the ocean we want”. After all, intact ocean

  • World's largest fish breeding area discovered in Antarctica

    filmed thousands of nests of icefish of the species Neopagetopsis ionah on the seabed. The density of the nests and the size of the entire breeding area suggest a total number of about 60 million icefish [...] breeding at the time of observation. These findings provide support for the establishment of a Marine Protected Area in the Atlantic sector of the Southern Ocean. A team led by Autun Purser from the Alfred [...] Fascinating discovery
    Near the Filchner Ice Shelf in the south of the Antarctic Weddell Sea, a research team has found the world's largest fish breeding area known to date. A towed camera system ph

  • Olaf Eisen

    play the conditions and the base of the ice for the speedy ice streams and did they change their behaviour in the past? Where can we find the oldest ice, with which we can reconstruct the climate of the [...] and ends with the composition of the subsurface below the ice, both of which govern flow behaviour of ice. In the end, we hope to make conclusions about how ice masses will change in the decades to come [...] million years ago? For all of these questions observations on site are essential. This begins with the determination of the ice thickness, continues with the inference of the crystal orientation fabric

  • Polar underwater sounds - AWI OZA (Kopie 2)

    Spectrogram of 20060419-0814_PALAOA (Photo: OZA AWI) A silent ocean Southern Ocean with sea ice (Photo: AWI) The Southern Ocean is one of the last pristine areas of the world’s oceans. Only few fishing and [...] Examples of underwater sounds in the polar oceans Map of the Atlantic sector of the Southern Ocean with all recording positions marked in red. (Photo: OZA AWI) The sound snippets below illustrate some [...] frequently in the vicinity of Elephant Island, off the northern tip of the Antarctic Peninsula, where the 20 Hz pulse also often contains a higher frequency component around 89 Hz. Spectrogram of 20130705-

  • Submarine Permafrost

    s exist for parts of the Canadian 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. [...] retreat and transgression, the evolution of permafrost beneath the sea floor, factors and processes determining the global distribution of submarine permafrost and the influence of future climate system changes [...] 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 permafrost