largest Arctic expedition in history: on 12 October 2020 our research vessel Polarstern returned after a year-long drift. Find out more UN Ocean Conference 2025 Find out more UN Decade of Ocean Science [...] of our planet‘s climate reveals: Surprisingly, there were periods in the past when glaciers in the Arctic and Antarctic melted at the same time - under conditions very similar to those of today. Find out [...] Online news How a 2003 heat wave still changes the North Atlantic Extreme events change the ecology of oceans abruptly: For example, a marine heat wave in 2003 had such strong effects on species composition

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Ruediger.Stein@awi.de
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Jens.Matthiessen@awi.de
+49(471)4831-1568
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fate of the Arctic Ocean in times of climate change Link to project webpage ARJEL To better understand the role of jellyfish in Arctic seas, the Helmholtz Young Investigators Group ARJEL (ARctic JELlifish) [...] Effect in the Arctic Ecosystem – is to assess the consequences of the decline in silicic acid concentration in the inflow of North Atlantic water into the Eurasian Arctic for the Arctic marine ecosystem [...] project webpage SO-CLIM Linkt to project webpage oceanPeak ERC Starting Grant OceanPeak COLDSPOT The project investigates where and why Arctic soils act as sinks for methane and nitrous oxide. link project

fate of the Arctic Ocean in times of climate change Link to project webpage ARJEL To better understand the role of jellyfish in Arctic seas, the Helmholtz Young Investigators Group ARJEL (ARctic JELlifish) [...] Effect in the Arctic Ecosystem – is to assess the consequences of the decline in silicic acid concentration in the inflow of North Atlantic water into the Eurasian Arctic for the Arctic marine ecosystem [...] project webpage SO-CLIM Linkt to project webpage oceanPeak ERC Starting Grant OceanPeak COLDSPOT The project investigates where and why Arctic soils act as sinks for methane and nitrous oxide. link project

Developing a Novel Methodology to investigate Diatom Silicification in the Eurasian Basin of the Arctic Ocean using Imaging Flow Cytometry and PDMPO natasha.bryan @ awi.de ORCiD Alfred Wegener Institut Am [...] E-1015 Overview of Doctoral project Phytoplankton communities living inside and below sea ice in the Arctic and the Antarctic arefacing rapid changes due to ongoing climate change. Light and nutrient availability [...] polar phytoplankton composite images obtained with the multispectral Imaging Flow Cytometer? How do Arctic phytoplankton communities differ from Antarctic communities in terms of their species composition

on, aggregation, ecological function and distribution of organic compounds in the changing polar ocean. We aim to understand the function of marine organic compounds, both, as diagnostic markers to decode [...] 2026 In the “FjordChange” project, we are investigating the influence of Atlanticification on the Arctic ecosystem around Spitsbergen. To this end, we are studying four fjords with varying degrees of A [...] of marine life Subtopic 6.3 The future biological carbon pump Subtopic 6.4 Use and misuse of the ocean: Consequences for marine ecosystems Publications of the Section Biological carbon pump Influence of

feedbacks between ocean structure and dynamics, sea ice physics, biogeochemistry, and biodiversity of the Arctic Ocean. Organic compounds in the Arctic Ocean and the deep Atlantic Ocean are derived from [...] elucidate, if the amount of dissolved organic compounds in the Arctic Ocean changed over the last decades. We also aim at quantifying the contribution of terrestrial organic matter because it represents [...] the effect of global warming on the occurrence of toxic microalgae and phycotoxins in the Arctic. The Arctic region is heavily impacted by global warming, which has an influence on the growth of planktonic