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

the Canadian Arctic” is a project of the research group PermaRisk , which is led by Moritz Langer , and was published in 2020. Digital stories invite you to travel to the Canadian Arctic. Visual impressions [...] system. The background is the IPCC Special Report on Oceans and Cryosphere (SROCC) , which was published in 2019. Hugues Lantuit: Collapsing Arctic coastlines | Horizons 2019 Presentation This presentation [...] these four pages. Julia Boike, Alfred Wegener Institute, Permafrost, Arctic Circle 2015 Presentation This presentation was held at the Arctic Circle Conference in October 2015. Julia Boike talks about the

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

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 [...] (Deutschlandfunk, 25.1.2017) Radio interview on the responses of Arctic phytoplankton to climate change on the occasion of the Arctic Frontiers conference 2017, Deutschlandfunk. Tiny algae, hugely resilient [...] important source of food in the oceans. Dr Clara Hoppe of the Alfred Wegener Institute examines how changed living conditions as a result of climate change affect Arctic microalgae. Algal diet (Rheinpfalz

The role of clouds and warm air masses from the open ocean for the rapid warming of the Arctic is at the heart of a recent Alfred Wegener Institute project on Svalbard. The researchers are applying a new

to the Arctic coastal-marine environment. CACOON Background Arctic rivers annually carry around 13% of all dissolved organic carbon transported globally from land to ocean, despite the Arctic Ocean making [...] Changing Arctic Carbon cycle in the cOastal Ocean Near-shore - CACOON No other region has warmed as much or as rapidly in the past decades as the Arctic. A new project, CACOON , investigates how the ecosystems [...] 1% of the Earth’s ocean volume. Arctic shelf waters are therefore dominated by terrestrial carbon pools, so that shelf ecosystems are intimately linked to freshwater supplies. Arctic ecosystems also contain

Earth compartments. MOSES primarily targets four events: heat waves, hydrological extreme events , ocean eddies and the thawing of permafrost . Hydrological extreme events Recent global projections predict [...] the Northern Hemisphere’s land mass and a large portion of the Siberian and North American shelves. Arctic warming occurs at a much higher rate (by up to 8 to 10 times) compared to the rest of the world.

Observatory in the Arctic Ocean Philipp Fischer et al. AWI Centre für Scientific Diving Photo: Gregory Tran The AWIPEV underwater observatory: a joint infrastructure of AWI and HEREON in an Arctic fjord system [...] MarTrec talk Philipp Fischer May 2024 "High-speed measurements in the Arctic: How to discriminate effects of marine heat waves and cold spells from „normal fluctuations“ in a polar shallow water ecosystem [...] Photo: Gregory Tran The AWIPEV underwater observatory: a joint infrastructure of AWI and HEREON in an Arctic fjord system (79°N) A year-round operated shallow water observatory in front of the Old Pier in Ny