floating microplastic particles leading to an export to the deeper ocean and sediments. Meanwhile, scientists and authorities worldwide have recognized the massive accumulation of MP in the aquatic [...] Gunnar Gerdts) Fram Pollution Observatory / Microplastics in the Arctic (in-house project; PIs: Melanie Bergmann, Ilka Peeken and Gunnar Gerdts) “Microplastics Reactor” and “Sediment Separator” (in-house [...] for microplastics analyses in European waters); www.jpi-oceans.eu/ecological-aspects-microplastics (PIs: Sebastian Primpke and Gunnar Gerdts) WT.SH project “Size is important” (PIs: Michaela

good fifty scientific expedition participants will explore the Arctic in transition as sea ice extent reaches its annual minimum in September. They will explore the biology, chemistry and physics of sea ice as well as the effects of sea ice retreat on the entire ocean system from the surface to the deep sea. Eleven years ago, Antje Boetius was part of the largest ever sea ice minumum in the Arctic [...] Now she is returning with her team to compare the state of the Arctic today - also with the data from the MOSAiC expedition 2019/20.

Institut) What is submarine permafrost? Subsea permafrost in the Arctic is generally relict terrestrial permafrost, inundated after the last glaciation and now degrading under the overlying shelf sea. [...] 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 permafrost following inundation have [...] Projects EU Nunataryuk BMBF MOSES BMBF / NERC CACOON FLO CHAR Arctic Coastal Dynamics (ACD)

Arctic cod is the most abundant fish in the Arctic Ocean. It is an important food source for Arctic marine mammals and plays an important [...] Institute, has now evaluated the most important scientific work on Arctic cod of the past decades. The conclusion: Above all, the already advanced decline in arctic sea ice cover as a result of man-made

Due to intensifying sea-ice melting in the Arctic, sunlight is now penetrating deeper and deeper into the ocean. Since marine zooplankton respond to the available light, this is also

After eventful and busy months, the Arctic season ends this weekend with the Polarstern expedition called ArcWatch-1. The team of almost 100 crew and scientists measured sea [...] properties, recorded the currents and chemical properties of the ocean and investigated life in and under the ice, in the open water and at the bottom of the deep sea. Their data show significant changes [...] world's first livestream of an ROV under-ice dive from the Central Arctic.

approach to generate essential knowledge on Arctic sea ice variability, a crucial indicator or ‘canary in the coal mine’ for the Arctic and global climate state. If greenhouse gas [...] with webODV services for supporting quality control procedures of ocean temperature profiles and the generation of new Arctic data products. Contact: Sebastian Mieruch-Schnülle Antarctic Sea Ice Reconstruction [...] “ (Processes and impacts of climate change in the North Atlantic Ocean and the Canadian Arctic), a collaborative project between the University of Bremen, the Alfred Wegener Institute, and a consortium

self-discharge of the battery in -1.75°C bottom waters of the deep Arctic Ocean. TRAMPER can be deployed with pin-point accuracy by means of a video-controlled cabled launching system. After the deployment [...] benthic oxygen flux studies in remote deep sea ecosystems , OCEANS 2016 MTS/IEEE Monterey, doi: 10.1109/OCEANS.2016.776121.

) The interaction of the lower atmosphere with sea ice and ocean is strongly influenced by processes caused by the surface morphology, which is characterized in the Polar ocean regions first of [...] have a large importance for the interaction between atmosphere and ocean. This concerns both hemispheres since cold-air outbreaks occur in the Arctic and Antarctic as well. Typical regions for cold-air [...] observations of atmospheric boundary-layer modification over Arctic leads , Q. J. R. Meteorol. Soc. , 141 , 2839–2856, doi: 10.1002/qj.2568 .

Ocean Eddies
In a new study, researchers from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) investigated the long-term changes in the Arctic Ocean eddy activity in response to climate warming. The study reveals a remarkable surge in Arctic eddy activity in a warmer climate [...] unparalleled when compared to other regions across the global ocean.