• Oceanic microseisms

    layers of the ground, oceanic microseisms can spread over many hundreds of kilometres. It is now well researched how strong storms not only generate large waves, but also increased oceanic microseisms activity [...] other way round: what does oceanic microseisms tell us about the nature of the ice over the course of the seasons? To answer these questions, we use data from our ice-going ocean-bottom seismometers (OBS) [...] microseismics were also recorded, which we are currently analysing. Map of the Arctic and Antarctic. The red stars mark the oceanic microseisms research projects. (Graphic: Alfred-Wegener-Institut) Contact

  • On thin ice in the warm Arctic

    Sea Ice
    The Arctic sea ice continues to dwindle: Since the 1970s, when satellites first began monitoring the white sheet covering the Arctic Ocean, its February extent was never as small as it was this [...] this year. The reason: warm air intrusions, which are not only hitting the Arctic more frequently, but are also intensifying and reaching farther north.

  • Open waters around the North Pole: Arctic sea ice in retreat

    Arctic Ocean
    This September, the Arctic sea ice extent has shrunk to 4.1 million square kilometres (sq km)-the second lowest in the history of satellite measurements. It is exceeded only by the all-time [...] all-time record low of 3.4 million sq km in 2012. "Once again, a massive loss of sea ice in the Arctic," says Prof. Lars Kaleschke from Universität Hamburg's Center for Earth System Research and Sustainability

  • Outreach

    Times' reports! Arctic climate change and the consequences for microalgae Contribution to the scientific expert reports section on the website of Scientific Year 2016/17 Resistant Arctic microalgae (De [...] (Deutschlandfunk, 25.1.2017) Radio interview on the responses of Arctic phytoplankton to climate change on the occasion of the Arctic Frontiers conference 2017, Deutschlandfunk. Tiny algae, hugely resilient [...] important source of food in the oceans. Dr Clara Hoppe of the Alfred Wegener Institute examines how changed living conditions as a result of climate change affect Arctic microalgae. Algal diet (Rheinpfalz

  • Outreach

    the Arctic environment? What changed in the Arctic over the last decades? What is permafrost? How does thawing permafrost affect the Arctic environment? How does thawing permafrost affect Arctic infr [...] explore the conflict of interests of different Arctic stakeholders. Lesson Plan Permafrost in the Arctic Living in the wild North The Permafrost Risk The Ocean Race Summit Dr. Rebecca Rolph was an invited [...] all-hands-on-deck meeting at the Ocean’s Race, an organization holds sailing races around the world. The Ocean’s Race has a growing interest in promoting sustainability and ocean conservation practices, and

  • POLEX

    the improved physical representation of polar air-sea ice-ocean interaction on the variability and changes of Arctic atmospheric circulation, Arctic sea ice and mid-latitude atmospheric circulation. Therefore [...] regions Arctic and Russia. Our project will strongly enhance the climate models capability to represent Arctic processes that are known to be critical for simulating linkages between the Arctic and mid [...] navigability of Northern sea route over the Arctic Ocean, wildfires and changes in vegetation characteristics over Russia. Milestone M4.1 Implementation of improved ocean wave-ice interaction model Milestone

  • PPR_Arctic

    remote sensing data alone, as the satellite ocean color algorithms are known to perform poorly at polar latitudes even if developed explicitly for the Arctic waters. Gaps in satellite data, which occur [...] for satellite applications. Ocean Science, 9 (2), pp. 431-445. doi: 10.5194/os-9-431-2013 , hdl:10013/epic.41331 Other references: Antoine, D. and A. Morel (1996). Oceanic primary production: I. Adaptation [...] PhD Thesis Alexandra Cherkasheva 2009-2014 Arctic phytoplankton today deserve special attention as they are already living in waters with most prominent climate change effect, which are shifting towards

  • PROCEED Postdoc Office

    announcements were on these topics: · Climate and Geosciences (atmosphere, ocean, ice and land) · Coastal systems · Terrestrial Arctic ecosystems and permafrost · Marine and polar life · Marine bioeconomy

  • PS101 KARASIK

    m at Gakkel Ridge of the Central Arctic. Such integrated studies of ultraslow oceanic spreading zones are rare, because the most extensive of these systems, the Arctic Gakkel Ridge and the Southwest Indian

  • Palaeo-ice sheet dynamics

    sea levels are the two most important cornerstones. We conduct marine geological research in the Arctic and Antarctic to more precisely define the inadequately known advance and retreat behavior of the [...] contributes to better reconstructing the history of global ice sheets and evaluating their influence on ocean circulation and sea level variations. As a result, models for future ice sheet behavior are then to