from the Arctic have plastics in their stomachs, which should come as no surprise, since my AWI colleague Melanie Bergmann has found out that litter is also floating on the surface in Arctic waters. And [...] of a garbage collection in the deep sea of the Pacific Ocean. (Photo: Antje Boetius) First of all, there’s the sheer amount of plastic in the ocean. Second, except for foamed polystyrene, the surface of [...] Expertise to Combat Marine Litter Litter in the Ocean Depths Tracking down microplastic 10 Questions, 10 Answers Infographic: Pathways of litter into the ocean Online portal LITTERBASE

operational analysis) – Ocean 3DVar-FGAT with 5-day window (in-situ profiles, sea-level anomalies, SST) – Sea ice univariate 3DVar-FGAT of sea-ice concentration from passive microwave • Arctic sea-ice forecasts [...] and climate forecasting • Potential sources of predictability: slower-than-weather processes (e.g. ocean and sea ice) • Wide range of potential economic and societal applications: – Humanitarian planning [...] members; each forecast comes with 20 years of re-forecasts for calibration • Fully coupled atmosphere, ocean and sea ice (LIM2) • Seamless approach: same model and initial conditions across all forecasting systems

Princeton University Press Feldman, G.C., & McClain, C.R. (2012). Ocean Color Chlorophyll (OC) v6, Ocean Color WebOcean Color Chlorophyll (OC) v6, Ocean Color Web. In N. Kuring, S.W. Bailey, B.F. Franz, G. Meister [...] within the Southern Ocean. Journal of Geophysical Research: Oceans, 106, 7125-7138 Rintoul, S. (2010). Antarctic Circumpolar Current. Ocean Currents: A Derivative of the Encyclopedia of Ocean Sciences, 196 Rintoul [...] biogeochemical cycle of the ocean. For example, diatoms are the major silicifiers in the ocean with frustules made of dissolved silicic acid, influencing the cycle of silica in the oceans. Coccolithophores build

Princeton University Press Feldman, G.C., & McClain, C.R. (2012). Ocean Color Chlorophyll (OC) v6, Ocean Color WebOcean Color Chlorophyll (OC) v6, Ocean Color Web. In N. Kuring, S.W. Bailey, B.F. Franz, G. Meister [...] within the Southern Ocean. Journal of Geophysical Research: Oceans, 106, 7125-7138 Rintoul, S. (2010). Antarctic Circumpolar Current. Ocean Currents: A Derivative of the Encyclopedia of Ocean Sciences, 196 Rintoul [...] biogeochemical cycle of the ocean. For example, diatoms are the major silicifiers in the ocean with frustules made of dissolved silicic acid, influencing the cycle of silica in the oceans. Coccolithophores build

time series in the arctic with special reference to the Hausgarten LTER station Katja Metfies 11:20 Molecular work in Spitzbergen Environmental Anne Vader 11:40 Perspectives for the Arctic. Connie Lovejoy [...] Titles Speaker 08:30-09:00 Welcome and introduction Alex Kraberg et al 09:00 Keynote lecture: Tara Oceans: Eco-Systems Biology at Planetary Scale Chris Bowler 09:30 Molecular assessments in the Continuous [...] Synthesis, Networking and dissemination 9:00-09:30 Keynote: Challenges in Marine ‘Omics: Lessons from Ocean Sampling Day Frank-Oliver Glöckner 09:30 Q-Zip, a rapid meta-barcoding pipeline Stefan Neuhaus 09:50

Alvarez E. (2022) Toward the Synergistic Use of Ocean Colour Products to Improve the Description of Phytoplankton Productivity within the Global Ocean. ESA Ocean Carbon from Space Workshop, Online event, 14 [...] (2002-2020). ESA Ocean Carbon from Space Workshop, Online event, 14 – 18 February 2022. Poster.​ Bracher A. (2021) S5P+-I-OC : S5P+ Innovation Ocean Color - presentation (Astrid Bracher, AWI ESA Ocean Science Cluster [...] monitoring of surface phytoplankton functional types in the Atlantic Ocean. Report: 7th edition of the Copernicus Marine Service Ocean State Report (OSR 7). State of the Planet. Oelker J., Losa S. N., Richter

the 2000s, the Institute of Arctic and Alpine Research (INSTAAR) began measuring Δ 14C-CO2 on flask samples from the Global Monitoring Laboratory (GML) of the National Oceanic and Atmospheric Administration [...] CO2 with the atmosphere, namely the ocean and the terrestrial biosphere. According to Levin et al. (2010: Figure 7) the largest net uptake of bomb 14C by the world oceans occurred in the 1970s and was about [...] northern latitudes such as at Alert in the Arctic (82.45°N, 62.52°W, 185 m asl) Figure 3 a: Long-term trend ofΔ14C-CO2 at the two polar stations Alert (Arctic) and Neumayer (Antarctica) (Levin and Hammer

West Arctic on example of Svalbard. Estimates of the spatial heterogeneity of the surface air temperature B. Ivanov , P. Sviashchennikov, Prokhorova Y., Ø. Nordli 11:05-11:25 WP1- AWI-SP: Arctic warming [...] ice observations in the Arctic and its comparison with passive microwave data T. Alekseeva 13:50-14:10 Sea ice variability in the earlier and modern warming and cooling of the Arctic V. Smolyanitsky 14:15-14:30 [...] peculiarities in the Arctic from reanalysis data and model simulations M. Akperov, I.I.Mokhov, M.A. Dembitskaya, M.R. Parfenova, A. Rinke 10:25-10:45 WP4- IAPRAS: Changes in the Arctic basin wave characteristics

Martin Losch, Helge Goessling Assimilation system § Model: AWI-CM (FESOM1.4-ECHAM6), ~25 km in the Arctic § Method: LESTKF (Nerger, 2012), a variant EnKF coded in PDAF § State vector: SIC, SIT, SIU, SIV [...] SAF data CTRL Analysis OSI SAF Only nominal data are assimilated and plotted. AO -AO + Analysis- Ocean Comparison to EN4 Theta Salinity SalinityTheta Analysis Analysis- Atmosphere Differences to ERA-Interim [...] SIC and SIT increments at each analysis step. Increment- Sea ice Sea ice drift increment Increment- Ocean Theta Implications from other experiments August mean Antarctic SIT averaged over 2007-2012 (No sea

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: