Bracher A. (2013) Photophysiological state of natural phytoplankton communities in the South China Sea and Sulu Sea. Biogeosciences Discuss., 10, 12115-12153, doi:10.5194/bgd-9-4727-2012. Wetzel G., Oelhaf H [...] Sidorenko D., Völker C., Ye Y., Zeising M., Hauck J. (2023) Ocean biogeochemistry in the coupled ocean-sea ice-biogeochemistry model FESOM2.1-REcoM3. Geoscientific Model Development: gmd-2023-2. doi [...] (2018) Assessing the influence of optically active constituents on the radiative heating of Laptev Sea surface waters. Extended abstract to Ocean Optics XXIV conference, Dubrovnik, 7 October 2018 - 12 October

MAT252 Sercon-2020 δ 30 Si δ 18 O (diatoms, radiolarians, sponge ferrules) Reconstruction of polar sea surface salinity changes and meltwater events (δ 18 O) Efficiency of the biological pump (δ 30 Si) [...] measurement of stable carbon isotopes of dissolved inorganic carbon (DIC) in waters from the polar seas is routinely carried out in our laboratories. This parameter is being determined via a GasBench Plus [...] supply of nutrient silicon and its use in polar and subpolar ocean regions (e.g. Southern Ocean, North Pacific) can be reconstructed on geological time scales. For the measurements, pure diatom-, radiolarian-

MAT252 Sercon-2020 δ 30 Si δ 18 O (diatoms, radiolarians, sponge ferrules) Reconstruction of polar sea surface salinity changes and meltwater events (δ 18 O) Efficiency of the biological pump (δ 30 Si) [...] measurement of stable carbon isotopes of dissolved inorganic carbon (DIC) in waters from the polar seas is routinely carried out in our laboratories. This parameter is being determined via a GasBench Plus [...] supply of nutrient silicon and its use in polar and subpolar ocean regions (e.g. Southern Ocean, North Pacific) can be reconstructed on geological time scales. For the measurements, pure diatom-, radiolarian-

abundance of small the deep-sea sediments at the HEBBLE site, zoobenthos around biogenic structures in tidal western North Atlantic. Deep-Ses Res sediments of the Wadden Sea Helgolände 33(6):755-790 M [...] of methane in the sea. Other key research areas are Hydrate Ridge (Cascadia Margin off Oregon, USA, Projects LOTUS and OMEGA, GEOMAR) and the methane seeps of the north-western Black Sea (Project GHOSTDABS [...] French ROV VICTOR 6000 first deployment from Polarstern. Sea Technology 4114: 51-53. Scientific Programmes The "Hausgarten" area - a long-term deep sea station in the Arctic Ocean La "Hausgarten" - observatoire

Federation of Digital Seismograph Networks FESOM Finite-Element/Volume Sea Ice Ocean Model FESOM-RecoM Finite Element/Volume Sea Ice Ocean Model – Regulated Ecosystem Model FIS Forschungsinfrastrukturen [...] Coordination Group for the Tsunami Early Warning and Mitigation System in the North-Eastern Atlantic, the Mediterranean and connected seas ICGEM International Center for Global Earth Models ICON Icosahedral N [...] program encom- passing twelve collaborative projects in coastal and shelf research in the North and Baltic Sea, BMBF-funded LandscapeDNDC Biogeochemistry and ecosystem dynamics model LandTrans AGRI Modular

several research vessels, research aircraft and research stations in the Arctic and Antarctic and the North Sea. Access and application process AWI operates two Basler BT-67 (DC-3T) polar aircraft. The research

and vice versa, is mainly caused by a north-south trend in Kd(λext) originating from a north-south trend in SCIAMACHY VRS fit factors. For GOME-2, no significant north-south trend is observed. In low latitudes [...] J. (2000). SeaWiFS algorithm for the diffuse attenuation coefficient, K(490), using water-leaving radiances at 490 and 555 nm. In SeaWiFS postlaunch technical report series, volume 11. Sea-WiFS postlaunch [...] 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, 2019). The role

des NoSoAT (North South Atlantic Transect) Teams vor dem Werfen des tägli- chen XBTs. Foto: Pauhla McGrane, Marine Institute, Galway. Cover : Expedition participants of the NoSoAT (North South Atlantic [...] Weather Conditions during PS95 5 3. The North South Atlantic Transect (NoSoAT) 9 4. Atmospheric Measurements of Aerosols, Clouds, and Cloud Microphysics within the Mobile Sea Facility Oceanet 17 5. Calibration [...] the central North- and East Atlantic a light southeasterly breeze predominated at first. During the following day, the southeast wind increased to force 6–7 Beaufort and an associated sea state of 1.5

constant distance from the surface (e.g. underside of sea ice) or bottom. AWI has developed a “depressor” that allows operation in medium-severity sea ice conditions. It can also be deflected horizontally [...] with light to moderate sea ice cover. It was used for the first time during the Polarstern PS131 expedition and allowed the collection of valuable data in the marginal ice zone north of Svalbard. Further

Expedition PS128 of the Research Vessel POLARSTERN to the Weddell Sea, Lazarew Sea, Riiser-Larsen Sea, Cosmonaut Sea and Cooperation Sea in 2022 Edited by Ralf Tiedemann and Juliane Müller with contributions [...] Expedition PS128 of the Research Vessel POLARSTERN to the Weddell Sea, Lazarew Sea, Riiser-Larsen Sea, Cosmonaut Sea, and Cooperation Sea in 2022, edited by Ralf Tiedemann and Juliane Müller with contributions [...] 1866-3192 The Expedition PS128 of the Research Vessel POLARSTERN to the Lazarew Sea, Riiser-Larsen Sea, Cosmonaut Sea, and Cooperation Sea in 2022 Edited by Ralf Tiedemann and Juliane Müller with contributions