Europe: Bernhard Diekmann Find out more > Dialogue & Lectures Lectures | 15.07.2018 Arctic Environments in Change Ecologic Arctic Summer College Policy advice [...] glance back in time shows: the face of our planet was not only dictated by the coming and going of oceans and mountains, or the wandering of continents; it was also constantly shaped by natural climate change [...] live in a world characterised by perpetual ice in the Antarctic, and fluctuating ice extents in the Arctic, North America and Europe. The North German landscape is a legacy of the last glacial 20,000 years

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

(MAMM, Arctic methane, Southern methane) and the European Union (InGOS, Geomon, IMECC, Meth‐MonitEUr, etc.) over the past 20 years; and also by the MOCA (Methane emissions from the Arctic Ocean) and SOCA [...] Research Laboratory, Global Monitoring Division, US National Oceanic and Atmospheric Administration, Boulder, CO, USA, 4Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, USA [...] (SPO). NOAA = National Oceanic and Atmospheric Administration; NILU=Norwegian Institute for Air Research; RHUL= Royal Holloway, University of London; INSTAAR= Institute of Arctic and Alpine Research; UHEI

, e.g. in water bodies, the soil and the air. Via ocean currents and rivers, the tiny plastic particles can even reach the Arctic, Antarctic or ocean depths. A new overview study has now shown that wind [...] the Institute for Advanced Sustainability Studies in Potsdam, and the GEOMAR Helmholtz Centre for Ocean Research in Kiel – describes how microplastic finds its way into the atmosphere and how it is subsequently

better understand and quantify the role of clouds in the lower Arctic atmosphere. A special focus is on the amplified climate change in the Arctic. To that aim measurements during ACLOUD and AFLUX were/are [...] Airborne Observations In, Below and Above Arctic Clouds Map of the areas for aircraft operation illustration the coordination activities at Polarstern and Ny Alesund (Photo: Alfred-Wegener-Institut) ACLOUD [...] research institutes (listed below) embedded in the Transregional Collaborative Research Centre TR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms (AC)³

already impacting the modern ocean. To recognize changes and predict the future ocean, ocean color (OC) remote sensing aims at quantifying and monitoring optically active oceanic constituents such as phytoplankton [...] 2.2 Ocean color remote sensing 2.2 Ocean color remote sensing Ocean color (OC) remote sensing (Mobley, 1994; Mobley et al., 2021) refers to the dis- cipline that infers information on the ocean from optical [...] c CO2 was taken up by the ocean (Friedlingstein et al., 2019). As a consequence, the ocean is warming, sea levels are rising, sea ice concentrations are declining, and ocean acidity is enhancing (IPCC

Today, the research vessel Polarstern will depart on a seven-week-long voyage to the Arctic, where the onset of summer also marks the beginning of the annual sea-ice melting. Over the past 40 years, the [...] zone, the team of researchers on board will investigate how heat fluxes and water layering in the ocean, as well as the characteristics of the ice, interact and influence melting. A further focus of the

Gelatinous zooplankton from the Fram Strait region, Arctic Ocean (Photo: Mario Hoppmann/AWI) Gelatinous zooplankton, comprising cnidarians, ctenophores and tunicates, are known to be major drivers of ecosystem [...] the consequences of range shifts of Atlantic and Arctic jellyfish. A better understanding of jellies´ trophic role is crucial for the rapidly changing Arctic and surrounding shelf seas, responsible for 10% [...] topics currently addressed by ARJEL: How diverse are gelatinous zooplankton communities in the Arctic Ocean? Since gelatinous zooplankton are fragile and easily fragmented, there are some biases associated

north of Svalbard, as well as ocean/glacier interactions off the coast of Greenland. Central research questions included how the ice conditions, ocean heat fluxes and ocean stratification determine sea-ice [...] The Research Vessel Polarstern was in the Arctic for the past seven weeks. There, the summertime sea-ice extent declined by ca. 40 percent over the past 40 years – making it one of the most visible impacts

attenuation coefficient at 490 nm OC ------------------- Ocean Colour OC-CCI ------------- Ocean Colour Climate Change Initiative OLCI ----------------- Ocean and Land Colour Instrument PFT ------------------ [...] com/channel/UCxseMj2r9jMDq-LjKzUOIVg/featured 6) Arctic Ocean MSM93 expedition contribution to newsletter of German Science Foundation Transregio Arctic Amplification: www.ac3- tr.de/download/n [...] reasonable spatial scale for ocean monitoring and improving statistical /empirical PFT retrievals. 3) Oelker J. (2021) “Suitability of atmospheric satellite sensors for ocean color applications” PhD Thesis