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

and cakes in the library so that you can get a break. Introduction to the Helgoland time series The Biologische Anstalt Helgoland operates some of the oldest time series in the world. The phytoplankton [...] automatically. The scientific dive centre The AWI's scientific dive centre is one of the largest institutions of its kind in Europe. On BAH Open day you will have the opportunity to meet the scientific dive [...] analysed much more often that 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 l

carbon in the ocean 21. October 2022 Human emissions of greenhouse gases, in particular carbon dioxide (CO2), have unequivocally changed our climate. The ocean takes up about one quarter of the excess CO2 [...] carried out in this remote region of the world’s oceans. During our expedition, we, therefore, also measure the CO2 concentrations in seawater from the surface down to the deep ocean. With these data, we’ll [...] other parameters. For a test run, the Triaxus now went into the water for the first time here in the Southern Ocean. © Dieter Wolf-Gladrow

hiatusses in the South Atlantic since the middle Miocene. The opening of Drake Passage in early Oligocene times and the closure of the CAS at ~6 Ma, i.e., tectonic processes, have been identified as the key triggers [...] emplacement of the plateau influence the climatic, oceanic environments, and Earth’s biota? What can we deduce about water mass changes during early stages of the plateau’s evolution? Did emplacement of the Agulhas [...] important driver of Cretaceous-Paleogene/Neogene climate changes in the Southern Ocean but the opening of gateways and subsequent migration of continents also has had a profound effect on the regional climate

sure whether the next few days will be snowy or sunny at the North Pole: the weather forecast for the Arctic is far less reliable than for other parts of the world, where an extensive grid of automatic weather [...] predictions are important The Year of Polar Prediction (YOPP) - from research to improved environmental safety. This video explains the background, methods and aims of the Year of Polar Prediction. For more [...] Jung is responsible for coordinating and implementing the Year of Polar Prediction. In this interview, he talks about how the weather and climate at the Earth’s poles is changing, how accurately weather and

handed to him. It goes without saying that the waters of the outer Arctic ice aren’t subject to the same pressure as in the inner ice, let alone the Central Arctic; the floe dimensions are on a different scale [...] planned" The German research icebreaker Polarstern has been drifting through the Arctic Ocean for a year since autumn 2019. Scientists from 20 nations explore the central Arctic over the course of the year [...] We had the advantage of being able to choose our preferred route into the northern ice. There were a number of techniques and analyses that helped us find the ideal position for entering the ice. What’s

to the archive holdings. In addition, you receive information about the origin of the archival records, about the work of the submitting agency and about its history. However, this procedure of the archive [...] Polarforschung - AdP) About the Archive The AdP was founded in 2011 on the basis of the Bremen Archive Act and has since worked as the memory of the AWI and German polar and marine research. The archive appraises [...] use the archive? The use of the AdP is free of charge. However, charges are levied for the production of copies of any kind, which are laid down in a scale of fees (available only in German). The archive

measurements of both, dissolved and particulate trace metals and vitamins will better elucidate the cycling of these micronutrients in the SO. In order to gain a better understanding of the physiological [...] Looking beyond Iron: Dynamics of vitamins, zinc and cobalt and their effect on phytoplankton community composition in a changing Southern Ocean In large areas of the worlds oceans iron (Fe) limits primary [...] Fe in different parts of the SO, short-term shipboard manipulation experiments with natural phytoplankton assemblages are planned onboard the Polarstern in the austral summers of 2016 and 2017. In addition

to 2000, the later years of the long period of sustained growth that was observed from the early 1980s (when the global measurement network began) through to the end of the century. Then came the period [...] but the focus of higher growth was further south, around 40°N. Growth in 2015 was led by the northern tropics and the Arctic/Boreal zone lagged the rest of the world, but in 2016 the zone north of 50°N [...] shift in the carbon isotope ratio of the methane. The causes of the rise are not fully understood, and may include increased emissions and perhaps a decline in the destruction of methane in the air. Methane's

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-