Climate Change assesses the state of the oceans with Prof. Dr. Björn Rost Storing heat, absorbing CO₂, and providing habitats for countless species - yet our oceans and coastal ecosystems are increasingly [...] reveal about the state of the oceans? And how are these scientific assessments actually derived? Prof. Dr. Björn Rost, one of the lead authors of the IPCC chapter on oceans and coastal ecosystems, discusses [...] 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

Grant Changes of water isotopes in Arctic Sea ice, Ocean, and atMosphere (CiASOM) (2021-2024) The main goal of the Changes of water isotopes in Arctic Sea ice, Ocean, and atMosphere (CiASOM) project is [...] this end, caves and permafrost exposure will be studied in East Siberia along a transect from the Arctic Ocean to the Lake Baikal. The objectives of the project are to: (i) Reconstruct (a) mean interglacial [...] to provide a comprehensive description of the present-day Arctic water cycle and related key exchange processes between the atmosphere, ocean, and sea ice, using both instrumental data and climate simulations

l factors to explore the ecological role of marine mammals in the Arctic Ocean. Data stem from the interdisciplinary Arctic FRAM ocean observatory, which provides a unique opportunity to gain insight into [...] into these interrelationships. I strongly believe that a holistic understanding of the Arctic Ocean ecosystem is essential in view of future management and conservation strategies to preserve this unique [...] n in expeditions to the Arctic and Antarctic as a member of the oceanographic mooring team. Current PhD Students Laura Gutiérrez I came from Chile to pursue my PhD in the Ocean Acoustics Lab. I am a marine

Rasmussen, M, & Szesciorka, A (2026, Februar 23). From Concept to Collaboration: The Arctic Acoustic Observing Network. Arctic Observing Summit (AOS), Aarhus, Denmark. doi.org/10.5281/zenodo.18748965 [...] 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

in the Arctic Ocean (Photo: Esther Horvath) From the boreal forest and tundra to the deep ocean, Arctic Pulse 2027 follows the journey of water, carbon, and sediments across the entire land–ocean system [...] and ocean, Arctic Pulse provides a holistic view of how physical, biogeochemical, and ecological processes interact across the land-ocean interface. These transformations not only reshape Arctic ecosystems [...] freshwater, sediments, carbon, nutrients, and contaminants from land to ocean. These changes directly affect the Arctic ocean’s freshwater balance and circulation, sea-ice, marine food webs, greenhouse-gas

Arctic Sea ice: Microstructure and geophysical processes Dr Hajo Eicken, Scientific Director of the Alfred Wegener Institute. Sea ice snow Arctic glaciology Sea-ice geophysics is a central research field [...] changes and ocean currents. Although these processes occur on very small spatial scales, they strongly affect the growth, stability, and decay of sea ice and thereby influence both Arctic ecosystems and [...] field within polar and climate sciences. Sea ice covers large parts of the Arctic and Antarctic and plays a key role in the Earth system by linking physical, ecological, and climatic processes. A particular

reflect in detail processes in the ocean, which have a major influence on the climate. In response, the AWI has developed a special ocean model (FESOM), which simulates e.g. ocean currents and sea ice. For their [...] All around the world, there are natural climate archives – the sediments on the ocean floor, ancient ice in the Arctic and Antarctic, wood for tree-ring analyses, and more. These archives contain what [...] computer programmes used to simulate reality: the motion of air masses, radiation from the sun, and ocean currents – they’re all climate-relevant processes that, with the aid of mathematical formulas, can

the international level and within the framework of intergovernmental bodies (eg SCAR, IASC, ATCM, Arctic Council, CCAMLR, OSPAR). The office is coordinating the AWI contributions and will perform as an [...] d communication for inter-institutional networks (DAM, DKK, Helmholtz Climate, KDM, UN Decade of Ocean Science, IPCC, IPBES, Leopoldina, etc.), in which the research contributions of the AWI / of Helmholtz

ecology of Arctic coasts Currently, global warming especially causes strong effects on Arctic ecosystems. We study the consequences of increasing water temperatures on species interactions in Arctic benthic [...] in financial support from the Interreg North-West Europe Programme. Exciting results Arctic burrowing Effects of Arctic lugworms Find out more Marine heatwaves Do you remember? Find out more Team PIs: Dr [...] benthic coastal communities. From these investigations we predict future scenarios for a warmer marine Arctic ecosystem and its species communites. Evolutionary Ecology Species invasions as a tool to study rapid

sea surface temperature observations to constrain upper ocean properties in an Arctic sea ice-ocean data assimilation system. J. Geophys. Res. Oceans , 124, 4723-4743, doi:10.1029/2019JC015073 Pradhan, H [...] ed-grid ocean model under Earth System Modeling Framework, Ocean Modelling , 196, 102546, ​ doi:10.1016/j.ocemod.2025.102546 . Bunsen, F. , J. Hauck, L. Nerger , S. Torres-Valdés. (2025) Ocean carbon sink [...] (2018) Arctic-wide sea-ice thickness estimates from combining satellite remote sensing data and a dynamic ice-ocean model with data assimilation during the CryoSat-2 period. J. Geophys. Res. Oceans , 123