on board is excited and ready to start the expedition in the Arctic Ocean. For two months, around fifty scientists will explore the Arctic in transition, as the sea ice extent reaches its annual minimum [...] biodiversity of the Arctic ecosystem from the sea ice to the seafloor. © Esther Horvath On the way to the ice 04. August 2023 This morning, we had nothing on the horizon but the endless ocean and blue sky, now [...] and physics of sea ice. We also want to investigate the effects of sea ice retreat on the entire ocean system – from the surface to the deep sea. © Esther Horvath

been measuring the Arctic Ocean sea ice for 30 years, the time series is the only aircraft- and helicopter-based measurement series in the world that has been carried out in the Arctic over such a long period [...] the food supply from the ice and ocean to the deep sea has changed. The first lander has already been deployed and the second will be launched later today. First Ocean Floor Observation 09. August 2023 [...] first Ocean Floor Observation and Bathymetry dive at our first ice station. During almost 6 hours on the seafloor we made a host of interesting observations with our instrument called OFOBS (Ocean Floor

sea levels are the two most important cornerstones. We conduct marine geological research in the Arctic and Antarctic to more precisely define the inadequately known advance and retreat behavior of the [...] contributes to better reconstructing the history of global ice sheets and evaluating their influence on ocean circulation and sea level variations. As a result, models for future ice sheet behavior are then to

samples. Our focus study areas are Arctic terrestrial systems (Russia, Alaska, Canada) and coastal–marine polar ecosystems (North Pacific & Atlantic, Southern Oceans). We apply metabarcoding (target-specific

Tallinna Tehnikaülikool (Estonia) Gronlands Naturinstitut (Greenland) Arctic Monitoring and Assessment Programme Secretariat World Ocean Council EU-PolarNet Participants (Photo: Alfred Wegener Institut)

Maps of the Arctic and Antarctic with underwater sound recording sites occupied by the AWI Ocean Acoustics group since 2006. PALAOA (PerenniAL Acoustic Observatory in the Antarctic Ocean) Between 2006 [...] in the Antarctic Ocean, or “whale” in Hawaiian. attached, since 2008, to deep-sea mooring of the oceanographic Hybrid Antarctic Float Observatory (HAFOS) and the Frontiers in Arctic Marine Science (FRAM) [...] seals, fish and invertebrates between Spitsbergen and Greenland. Further moorings in the adjacent Arctic Ocean extend this array slightly to the North. MAP of FRAM moorings hosting PAM recorders an AZFPs.

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

proxies TEXH86 and UK’37 Long-term winter warming trend in the Siberian Arctic during the mid- to late Holocene Back from Antarctica Ocean surface temperature variability: Large model–data differences at decadal [...] profiles Flat Meridional Temperature Gradient in the Early Eocene in the Subsurface Rather than Surface Ocean Layering of surface snow and firn at Kohnen Station, Antarctica - noise or seasonal signal? Assessing

diatoms (diatoms) to reconstruct sea ice cover. Projects Arctic Ocean Arctic Ocean mean sea ice concentration (Graphic: NSIDC) Southern Ocean Southern Ocean mean sea ice concentration (Graphic: NSIDC) [...] sea ice extent and thickness have a strong influence on albedo, the hydrologic cycle, ocean and air currents, ocean-atmosphere energy exchange, water mass stratification and formation, and biological p [...] ice variations is a significant prerequisite for understanding the interactions between the ice, ocean, and atmosphere and their influence on climate change. AWI has a long-standing expertise in micro

of a permafrost landscape How do you imagine an Arctic landscape characterized by permafrost? The answer is visualized by a 3-dimensional print of an Arctic landscape in Northeast Siberia, the Bykovsky Peninsula [...] ‘before-and-after’ lenticular images, together with video and audio recordings from expeditions to the Arctic, will help illustrate the thawing of the permafrost, and the fieldwork involved in investigating [...] ice melts on slopes. As a result, sediments and plant remains are transported into rivers and the ocean, thereby changing the biochemistry of the water. The data were collected by Gonçalo Vieira und Pedro