satellite remote sensing products to quantify Antarctic sea ice mass balance. Further information: www.norceresearch.no/en/projects/sea-ice-mass-balance-assessment-southern-ocean-so-simba MASIS [...] Rowan & Theo were at EGU 29.03.2025 >>> Alex H. & Rowan lead the Heincke Student Expedition to the North Sea with students from Munich, Düsseldorf & Bremen 15.01.2025 >>> Alex H. visted Abu Dhabi for a Dialogue [...] budget. This important role arises from the vast exchange of water between the deep ocean and the sea surface that is unprecedented in the global ocean elsewhere. Over past decades, the Southern Ocean

AWI scientists Oliver Hauck and Björn Suckow took part in the North Sea Conference 2025 in Oldenburg - and won two awards. In the North Sea Video & Photo Contest, their contributions took first place in [...] current impacting on winter sea ice in the… In the last few decades, the Arctic sea ice has receded ever further, including increasingly in winter when the extent of sea ice is at its most prominent. [...] potential that the sea offers for sustainable nutrition. Another highlight of the programme was a tour of the Centre of Aquaculture Research. Double win for CLANCY at the North Sea Conference 27. June

AWI scientists Oliver Hauck and Björn Suckow took part in the North Sea Conference 2025 in Oldenburg - and won two awards. In the North Sea Video & Photo Contest, their contributions took first place in two categories: A photo by AWI photographer Esther Horvath won in the “North Sea Places” category. A video produced by Heide Matz and Carlotta Labitzke won in the “Free for All” category. The entries showcase the CLANCY project's efforts to contain the invasive mitten crab.

represent temporary perturbations, long-term trends, or a new equilibrium. The decrease of sea-ice extent and sea-ice thickness in the past decade is statistically significant. These alterations will directly [...] detection of expected changes in abiotic and biotic parameters in a transition zone between the northern North Atlantic and the central Arctic Ocean, the Alfred Wegener Institute established the LTER (Long-Term [...] Wlodarska-Kowalczuk, M., Klages, M. (2005): HAUSGARTEN: multidisciplinary investigations at a deep-sea, long-term observatory in the Arctic Ocean. Oceanography 18(3): 46-61, doi.org/10.5670/oceanog.2005

and its implications for research at sea. The data collected during the cruise will become part of an established data series on the North-South (NoSoAT) and South-North (SoNoAT) transits of the icebreaker [...] Shipboard training NoSoAT (North to South Atlantic Transect) / SoNoAT (South to North Atlantic Transect) We are pleased to announce that the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine [...] 20 training scholarships and, for the first time, 5 scholarships for junior teachers. The NoSoAT (North-South Atlantic Transect) OceanCapX (Ocean Capacity Exchange) expedition will depart on 13 November

Bremerhaven – Bremerhaven Find out more Uthörn II – North Sea Wrecks 16. May 2022 – 20. May 2022, Bremerhaven – Bremerhaven Find out more Uthörn I – North Sea Wrecks 28. June 2021. – 02. July 2021, Bremerhaven [...] Bremerhaven – Bremerhaven Find out more HE584 – North Sea Wrecks II 17. – 22. September 2021, Bremerhaven – Bremerhaven Find out more HE573 – North Sea Wrecks I 06 – 11. April 2021, Bremerhaven – Bremerhaven [...] RV Heincke Sediment sampling Side Scan SMS Mainz HE573 – North Sea Wrecks I 06 – 11. April 2021, Bremerhaven – Bremerhaven The North Sea Wrecks project aims to develop and implement a common approach for

completing survival training—including a night on the sea ice—we embarked on our mission at Arrival Heights near McMurdo Station. Cutting through 1.7 meters of sea ice revealed a fascinating underwater ecosystem [...] carbon and Silicate cycle of a Changing Antarctic (SPONGESCAN) Cutting entrance and safety holes in the sea ice. (Photo: Erik Wurtz) Heated tent over the dive hole. (Photo: Erik Wurtz) Lander system above the [...] prevent the system from the destructive long-term impact of saltwater, cold temperatures, storms, sea-ice and icebergs for almost 6 years. Meanwhile some steel components were more or less gone due to

Debusschere, E. (2024): Revised clusters of annotated unknown sounds in the Belgian part of the North sea. Frontiers in Remote Sensing, 5, 1384562. DOI: doi.org/10.3389/frsen.2024.1384562 Parcerisas [...] in the Weddell Sea. Endangered Species Research, 30:239-253. DOI: doi.org/10.3354/esr00739 . 2015 Menze S, Zitterbart D , Van Opzeeland IC, Boebel O (2016). The influence of sea ice, wind speed [...] Van Opzeeland, I., Eriksson B.K. (2025): The biological soundscape of temperate reefs in the Wadden sea. Sci Rep 15, 9216. DOI: doi.org/10.1038/s41598-025-92955-0 Wöhle, S., Thomisch, K., Burkhardt

students (Master Studenten) Marie-Luise Schneider (active), University Oldenburg Soundscapes of the North Sea: Acoustic fauna identification using Hydrophones and Baited Remote Underwater Videos Ricarda Wesener [...] humpback whale populations in the eastern Weddell Sea in 2011 and 2012 Ramona Mattmüller (2019), Master Uni Bremen Marine mammal acoustic presence in relation to sea ice concentrations off Tasiilaq, East Greenland [...] monitoring for marine mammal research and mitigation. I supervise the maintenance of the Weddell Sea’s HAFOS (Hybrid Antarctic Float Observing System) long-term marine observatory including the PALAOA

MAT252 Sercon-2020 δ 30 Si δ 18 O (diatoms, radiolarians, sponge ferrules) Reconstruction of polar sea surface salinity changes and meltwater events (δ 18 O) Efficiency of the biological pump (δ 30 Si) [...] measurement of stable carbon isotopes of dissolved inorganic carbon (DIC) in waters from the polar seas is routinely carried out in our laboratories. This parameter is being determined via a GasBench Plus [...] supply of nutrient silicon and its use in polar and subpolar ocean regions (e.g. Southern Ocean, North Pacific) can be reconstructed on geological time scales. For the measurements, pure diatom-, radiolarian-