Melanie Bergmann

MB Melanie Bergmann counts Arctic Ocean plastic, jpg | 363 KB Melanie Bergmann analyses marine litter in, jpg | 3 MB Media Euronews (Video) | 02.06.2023 Cleaning up the oceans: Is it too little, too late [...] on the Arctic | 25.04.2023 Arctic ice algae highly polluted with microplastics, poses food chain threat: study Find out more > Deutsche Welle (Video) | 09.02.2022 Plastic Solutions in the Oceans Find out [...] Presentation on EU Mission Plastic-Free Ocean to European Parliament Intergroup 2020 GESAMP Workgroup on “The Atmospheric Transport of Microplastics to and from the Ocean” 2020 EU Sounding Board on a scientific

Recent Results

of light penetrating into the Arctic Ocean, enhancing sea-ice melt and affecting sea-ice and upper-ocean ecosystems. Radiation fluxes through summer sea ice in the Arctic [...] energy fluxes through Arctic sea ice Arndt and Nicolaus ( 2014, TC; doi:10.5194/tc-8-2219-2014 ) In this study, we quantify solar shortwave fluxes through sea ice for the entire Arctic during all seasons [...] of melt onset and the correct classification of ice types. Radiation fluxes through Arctic sea ice Changes in Arctic sea ice result in increasing light transmittance and absorption Nicolaus et al. ( 2012

Research Focus

IODP/ICDP drill proposals. Formation of the Arctic Basin Polarstern for geophysics in the Arctic Ocean Research projects on the formation of the Arctic Ocean Development of the North Atlantic Deepwater [...] modification of oceanic crust, and modification of regional palaeo-circulation. Palaeo-topography and dynamic modifications of the seafloor strongly affect the pathways of the oceanic circulation and the [...] and its precursors? Follow this link Gateways of the Southern Ocean What was the effect of the opening of the gateways of the Southern Ocean? Lakes as climate archives Old lake-level terraces at the current

Awards and honors

the Arctic lost its white landscape and had a blue, ice-free ocean. Alexander Haumann , ERC Starting Grant VERTEXSO , January 2023 - Dcember 2027. VERTEXSO (VERTical EXchange in the Southern Ocean) studies [...] future. Ocean tracers serve as a fingerprint of the impact of rapidly melting ice masses on the ocean’s salinity and will be used to constrain a climate model. Lettie Roach , since 2024. SouthernOcean and [...] also involved in this project. Into the Blue: Resolving Past Arctic Greenhouse Climates. What are the global impacts of an ice- free Arctic? Taking a look into time periods warmer-than-present (i.e. P

Research

y in the Arctic Ocean may transition from being predominantly light-controlled to being more nutrient-controlled. Also, the phenomenon of ocean acidification is most pronounced in the Arctic due to the [...] temporal scales of phyoplankton activity (Graphic: Phytochange) Focus – The Arctic is warming faster than any other oceanic region of the planet and its sea-ice cover is declining faster than models predict [...] e Lüdeling) FRAM - Our Work group is also involved in the context of the Arctic long-term observatory FRAM (Frontiers of Arctic Monitoring) . Based on innovative developments as well as approved technologies

The Polarstern expedition PS92

sail for a six week expedition to the Central Arctic Ocean initiated by “ART”. ART, in this case, does not stand for artistry but is the abbreviation for Arctic in Rapid Transition, an international research [...] research network established by early career scientists working in the Arctic.

The benefits of models

represents one of the most important connections between the Arctic Ocean and the North Atlantic. In the past few years, we’ve seen a major decline in Arctic sea ice in the region. In addition, more warm and salty [...] regional climate model for the Arctic. The model consists of several components: the atmosphere, sea ice, ocean and land. Simulations with this model help us interpret the Arctic climate, its variability and [...] climate changes in the Arctic are connected to the weather and climate in central Europe. The difficult thing about these interactions is the fact that, in addition to the Arctic factors, other aspects

Abstract_All1.pdf

The microbial communities of the Arctic Ocean are taxonomically distinct from other oceans, suggesting vulnerability due recent climate related changes. In the Arctic, the environments that select different [...] of sea-ice on Arctic marine single-cell eukaroyte community composition, or of ocean warming in Eastern Fram Strait since the year 2000. In the future, the observation strategy for Arctic marine microbes [...] from climate change impacts on these high- Arctic systems. anna.vader@unis.no Perspectives for the Arctic Connie Lovejoy Département de biologie, Québec Océan, Institut de biologie intégrative et des

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Campaigns

institutions in 3 European countries studied processes of the energy transfer between the ocean and the atmosphere in the Arctic. The project was conducted from 1998 to 2000 with a major field campaign involving [...] addressed the effects of clouds and of Arctic Haze on the radiative fluxes at the surface and in the atmospheric column for various states of the surface in the European Arctic. Major emphasis was put on convective [...] over the ice-free ocean and on stratiform clouds at low levels and their radiational exchange with sea ice. The effects of clouds on the radiative fluxes for various states of the ocean surface were studied

koldunov.pdf

al., 2017 Global FESOM2 setup with 4.5 km Arctic Ocean Sea ice dynamics 𝐷(𝑚𝒖) 𝐷𝑡 = −𝑚𝑓*𝒌 ×𝒖 + 𝝉𝒂 + 𝝉𝒘 −𝑚𝑔∆𝐻 + 𝛻 6 𝝈 Coriolis force a/s and ocean drag Sea Surface tilt Ice interaction Ice [...] not scale well FESOM2 throughput depending on NEVP (4.5km Arctic Ocean setup, 1728 cores) At about 650 NEVP the sea ice code cost as much as ocean code. Scalability of different model computational cores [...] From this To this Same computational cost Ice thickness, 4.5 km resolution Arctic setup Finite Element (volumE) Sea Ice Ocean Model FESOM Solves: • hydrostatic primitive equations • sea ice equations Domain:

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