Arctic Seas) COSYNA cabled underwater observatory Helgoland (Photo: Alfred Wegener Institut) COSYNA is an observing system comprising several land and sea-based sensor systems in the North Sea and in the [...] is the North Sea, were more than 80 % of the coastline is already artificially protected. In 2010, the Centre for Scientific Diving of the AWI has installed an underwater experimental field North of Helgoland [...] the Arctic. The AWI contributes to COSYNA with two cabled underwater observatories in the North Sea (Helgoland) and in the Arctic (Kongsfjord Spitzbergen). Both systems are part of the Helmholtz Observatory

of the AWI Section Shelf Sea System Ecology includes: Impacts of natural and non-natural variability and changes in communities in the water column and on the bottom of the sea. How individual organisms [...] research fleet for coast research Find out more News News, events and activities Find out more AWI North Sea Office Communication of scientific knowledge Find out more Guest Research & Student Courses Research [...] laboratory Find out more Long-term Observations (LTO) Analysis of long-term ecological changes in the North Sea Find out more

the (sub-) polar North Atlantic (Fram Strait, Greenland Sea, Baffin Bay) and their changes through late Quaternary times. Of special interest will be the interrelationship between sea-ice cover, meltwater [...] Arctic sea ice variability, a crucial indicator or ‘canary in the coal mine’ for the Arctic and global climate state. If greenhouse gas emissions remain unchecked and further increase, summer sea ice loss [...] draining into the Amundsen Sea, the Pine Island and Thwaites glaciers. If these two major ice streams continue retreating into the deep inner basins, they would raise the global sea level by ~1.5 m. In order

(Coastal Observation System for Northern and Arctic Seas) is an operational coastal monitoring, forecasting and information system for the North Sea composed by fixed platforms, FerryBoxes, gliders and [...] PowerPoint Presentation Integration of a radioactivity system in a sensors’ network at the North Sea HCMR, AWI TNA Project RadConnect 12/10/2023 TNA Project RadConnect Motivation and Goals Systematic control [...] monitor natural and artificial radioactivity levels of the seawater at the specific area of the North Sea (Helgoland). Future environmental monitoring 12/10/2023 TNA Project RadConnect The idea to develop

en Lebensraum Meeresboden Meereisbildung — Der Pfannkuchen-Zyklus• Langsames Wachstum (~1/8 of North Sea, aber Ausnahmen!) • Gigantismus • Viele (> 50%) sessile Arten • Viele Filtrierer, aber auch Weidegänger

measured sea ice thickness and 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 [...] significant changes compared to previous expeditions. On 7 September 2023, Polarstern reached the North Pole, and on 20 September there was the world's first livestream of an ROV under-ice dive from the

glance The Greenland Ice Ice Sheets Sea Ice Influence on Europe's climate Climate change in the Arctic Climate change and the Southern Ocean Climate change and the North Sea Climate change and the ocean Permafrost [...] Governance The collaborative framework of AWI’s Antarctic research Marine Protected Area in the Weddell Sea Arctic Council Shipping in the Arctic Arctic and Antarctic – more differences than similarities? Arctic

part of the work on the sea ice, we also investigate the ice from below with the help of the ROV. As part of our the sea ice physics measurement program, we investigate the sea ice from below using the [...] Bremerhaven together with many boxes. As we leave the sea ice soon, each team prepares their equipment to store it safely for the transit through the Northern Seas which will supposedly be quite rough. Here, Jan [...] ly completed 9 ice stations with the full scientific programme of Sea Ice Physics, Physical, Chemical and Biological Oceanography, Sea Ice Biology and Benthic Biology and Biogeochemistry. Over 50 buoys

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 [...] variability of the acoustic repertoire of Antarctic minke whales (Balaenoptera bonaerensis) in the Weddell Sea. Scientific Reports 13.1, 11861. DOI: doi.org/10.1038/s41598-023-38793-4 2022 Schall, E. & Parcerisas [...] El-Gabbas A (2022): Fin whale ( Balaenoptera physalus ) distribution modeling on their Nordic and Barents Seas feeding grounds. Marine Mammal Science Marine Mammal Science 1-26. DOI: doi.org/10.1111/mms

Horvath Changes on the seabed 14. September 2023 Deep-sea biologists are excited about the seafloor at Ice Station 8. Eleven years ago, it was littered with sea ice algae, now it is a world full of large worm [...] Wooden boats on an Arctic voyage 13. September 2023 During our visit to the North Pole, we launched 200 small wooden boats on the sea ice next to an autonomous measuring buoy. The boats can be tracked on their [...] g, responsible for maintenance. The helicopter’s main task is scientific, with flights to measure sea ice thickness and deploy bouys, but it is also used for transport between Polarstern and our ice station