Due to intensifying sea-ice melting in the Arctic, sunlight is now penetrating deeper and deeper into the ocean. Since marine zooplankton respond to the available light, this is also changing their behaviour

After eventful and busy months, the Arctic season ends this weekend with the Polarstern expedition called ArcWatch-1. The team of almost 100 crew and scientists measured sea ice thickness and properties [...] 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 data show significant changes compared [...] on 20 September there was the world's first livestream of an ROV under-ice dive from the Central Arctic.

networks Systems are fully compatible for integration to HCMR POSEIDON System and to international ocean observing networks (e.g. GOOS) Expanding network’s potential by incorporating Marine Radioactivity [...] 12/10/2023 TNA Projecr RadConnect COSYNA - GeoMAREA • COSYNA (Coastal Observation System for Northern and Arctic Seas) is an operational coastal monitoring, forecasting and information system for the North Sea

global Autonomous Reef Monitoring Structures (ARMS) programme • European collaborative project • Arctic & Antarctic data • Large scale experiment in Plymouth Sound Seagrass - mooring mitigation Larval [...] MRes Scientific Diving Initial intake – Jan 2025 National Geographic Pristine Seas: Conserving the Oceans M I L E S T O N E P R O T E C T 3 0 % O F T H E P L A N E T B Y 2 0 3 0 H A L F O F T H E P L A N [...] water habitat use Future - MRes Scientific Diving National GeographicPristine Seas: Conserving the Oceans Slide Number 20 Slide Number 21 Slide Number 22 National Geographic Pristine Seas Slide Number 24

atmosphere-ocean interactions Atmosphere-ocean interactions at high latitudes are thought to play a key role in past atmospheric CO2 variability by controlling the sea-ice field, upper ocean physical parameters [...] in the Arctic, Topic: ERC-2018-COG AGENSI, an ERC Horizon 2020 project led by Stijn de Schepper (Bergen University, Norway), takes an innovative approach to generate essential knowledge on Arctic sea ice [...] the Arctic and global climate state. If greenhouse gas emissions remain unchecked and further increase, summer sea ice loss may pass a critical threshold that could drastically transform the Arctic as we

within one year due to the self-discharge of the battery in -1.75°C bottom waters of the deep Arctic Ocean. TRAMPER can be deployed with pin-point accuracy by means of a video-controlled cabled launching [...] crawler for long-term benthic oxygen flux studies in remote deep sea ecosystems , OCEANS 2016 MTS/IEEE Monterey, doi: 10.1109/OCEANS.2016.776121.

between atmosphere and ocean. This concerns both hemispheres since cold-air outbreaks occur in the Arctic and Antarctic as well. Typical regions for cold-air outbreaks in the Arctic are the Fram Strait and [...] of the lower atmosphere with sea ice and ocean is strongly influenced by processes caused by the surface morphology, which is characterized in the Polar ocean regions first of all by the sea ice cover [...] Polar Atmospheric Boundary Layer - Observations and Small Scale Modelling Temperature profiles over Arctic sea ice during summer. Boundary layer heights amount here to about 60 m (blue) and 500 m (red) (Graphic:

Ocean Eddies
In a new study, researchers from the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) investigated the long-term changes in the Arctic Ocean eddy activity [...] study reveals a remarkable surge in Arctic eddy activity in a warmer climate, a trend that is probably unparalleled when compared to other regions across the global ocean.

Consistency and Challenges in the Ocean Carbon Sink Estimate for the Global Carbon Budget. Front. Mar. Sci. 7, 571720. doi.org/10.3389/fmars.2020.571720 •[Arctic high-resolution] Schourup-Kristensen [...] nsen, V., Wekerle, C., Wolf-Gladrow, D., Völker, C. (2018): Arctic Ocean biogeochemistry in the high resolution FESOM 1.4-REcoM2 model, Progress in Oceanography, 168, 65-81, doi:10.1016/j.pocean.2018.09 [...] macrozooplankton, Karakuş et al., 2022 ), and to include the sensitivity of phytoplankton growth to ocean acidification ( Seifert et al., 2022 ). Main REcoM references (chronological order): •[3 phytoplankton

atmosphere and the ocean. The climate of the Arctic is subject to visible changes and the sea-ice albedo feedback mechanism acts as an amplifier of climate change. The observed decrease of Arctic summer sea ice [...] coupled ice-ocean-atmosphere system and a growing radiative forcing associated with rising concentrations of atmospheric greenhouse gases. The attribution of ongoing changes in the Arctic and Antarctic [...] of key processes in the Arctic and Antarctic climate system. Major gaps and uncertainties exist in the knowledge of processes governing e .g. the build-up of aerosols in the Arctic and its role for climate