The Perennial Acoustic Observatory in the Antarctic Ocean—Real-Time Eavesdropping on the Antarctic Underwater Soundscape. In: Listening in the Ocean, edited by W. W. L. Au and M. O. Lammers, pp. 207-219 [...] JL, Van Opzeeland IC, Van Parijs SM, Jones J (2016). Pinniped Sounds in the Polar Oceans. In: Listening in the Ocean, edited by W. W. L. Au and M. O. Lammers, pp. 257-308, Springer New York, New York [...] 427-100.html , broadcasted in DLF and Bremen 2 June 2022: Ocean Future LAB - co-creative workshop on resilient future scenarios for our oceans April-November 2022: Wissenschaftliche Begleitung bei Vorbereitung

key Arctic atmospheric and sea ice variables based on satellite and in-situ data sets (WP1) • Regional feedback mechanisms responsible for Arctic climate change (WP2) • Interaction between Arctic climate [...] routes (WP4) • Impact of Arctic sea ice and cyclones on biodiversity and productivity of the Arctic marine biota (WP5) WP1 will quantify the strength of climatic changes in the Arctic based on unique Russian [...] in-situ and satellite data for sea ice and ocean variables and atmospheric key parameters. WP2 will improve the regional feedbacks between the Arctic atmosphere, ocean, sea ice, and snow in a regional coupled

Changes in the circulation freshwater between Arctic Ocean and subpolar North Atlantic In RACE we study the variability of the freshwater storage in the Arctic Ocean and the subpolar North Atlantic. We use [...] observations and model simulations of the ocean and the sea ice to understand the underlying processes. Here you find the project website . Contact: Dr. Benjamin Rabe (Phys. Oceanography) Prof. Dr. Rüdiger

funded by JPI Oceans and will create new knowledge and improve our mechanistic understanding of the sources, transport, occurrence, and fate of small microplastics from European waters to the Arctic. The consortium

of light penetrating into the Arctic Ocean, enhancing sea-ice melt and affecting sea-ice and upper-ocean ecosystems. Radiation fluxes through summer sea ice in the Arctic [...] energy fluxes through Arctic sea ice Arndt and Nicolaus ( 2014, TC; doi:10.5194/tc-8-2219-2014 ) In this study, we quantify solar shortwave fluxes through sea ice for the entire Arctic during all seasons [...] of melt onset and the correct classification of ice types. Radiation fluxes through Arctic sea ice Changes in Arctic sea ice result in increasing light transmittance and absorption Nicolaus et al. ( 2012

sea ice covered regions in the Arctic and Antarctic oceans make satellite remote sensing the only tool that is able to obtain a full picture of sea ice conditions. The Sea Ice Physics section is actively [...] Sea Ice Remote Sensing Map of Arctic sea ice thickness (April 2015) obtained from CryoSat-2 data (Graphic: Alfred Wegener Institut) Contact: Dr. Stefan Hendricks The inaccessibility and sheer size of sea [...] the European Space Agency (ESA) is based on a radar altimeter that fully maps Antarctic sea ice and Arctic sea ice up to a latitude of 88°N. This coverage is unparalleled in comparison with all previous and

y in the Arctic Ocean may transition from being predominantly light-controlled to being more nutrient-controlled. Also, the phenomenon of ocean acidification is most pronounced in the Arctic due to the [...] temporal scales of phyoplankton activity (Graphic: Phytochange) Focus – The Arctic is warming faster than any other oceanic region of the planet and its sea-ice cover is declining faster than models predict [...] e Lüdeling) FRAM - Our Work group is also involved in the context of the Arctic long-term observatory FRAM (Frontiers of Arctic Monitoring) . Based on innovative developments as well as approved technologies

emulators and foundation models for: Sea ice, ocean, and climate systems. High-resolution downscaling for local climate insights. AI-based diagnostics for tracking ocean eddies and other key processes. AI-powered [...] Climate Change Investigating fundamental climate processes, including: Large-scale atmospheric and ocean circulation. Climate variability and long-term climate trends. The role of polar regions in shaping [...] simulations, and theory. Model Development FESOMx – The next-generation Finite volumE Element Sea Ice-Ocean Model, designed for: High performance (GPU-ready, Python-based, mixed-precision). Modular and scalable

concentrations in the oceans. An example is the relationship between nitrate and phosphate which allows to distinguish between water of Pacific and Atlantic origin in the Arctic. Nutrient data from 1984 [...] zooplankton origin. Monitoring of nutrient dynamics Investigations of the nutrient dynamics in the polar oceans are closely related to biological and hydrographical studies. These basic data are important to study

environmental changes in a the transition zone between the northern North Atlantic and the central Arctic Ocean, and to determine the factors controlling deep-sea biodiversity, the Alfred Wegener Institute [...] knowledge about biodiversity in the deep sea has started to increase and today we know that the deep ocean on planet Earth hosts an enormous diverse deep-seabed life. Biodiversity in the deep sea depends among [...] strong seasonal forcing, the accelerating rate of recent climate change challenges the resilience of Arctic life. The entire system is likely to be severely affected by changing ice and water conditions, varying