Error bars: One standard deviation of the mean difference Where & when? NSIDC regions „Arctic Ocean“ and „Canadian Arctic Archipelago“ for 2003-2011 PMW differences to MODIS SIC & ISF as f(melt-pond fraction) [...] Products Pan-hemispheric inter-comparisons Evaluation at 100% sea-ice concentration Evaluation during Arctic summer melt * Kern, S., et al., ICDC, CEN, University of Hamburg 9th Int. Workshop on sea ice modelling [...] Products Pan-hemispheric inter-comparisons Evaluation at 100% sea-ice concentration Evaluation during Arctic summer melt * Kern, S., et al., ICDC, CEN, University of Hamburg 9th Int. Workshop on sea ice modelling

Antarctic ice-bed-ocean interfaces , Nature Communications, 9, doi: 10.1038/s41467-018-04583-0 . Stärz, M. , Jokat, W., Knorr, G. and Lohmann, G. (2017): Threshold in North Atlantic-Arctic Ocean circulation [...] doi: 10.1038/ncomms15867 . Stein, R., Fahl, K., Gierz, P. , Niessen, F. and Lohmann, G. (2017): Arctic Ocean sea ice cover during the penultimate glacial and the last interglacial , Nature Communications [...] , Jokat, W. and Lohmann, G. (2016), Evidence for ice-free summers in the late Miocene central Arctic Ocean , Nature Communications, 7, pp. 1-13, doi: 10.1038/ncomms11148 . Abelmann, A., Gersonde, R. ,

A. (2013): FRAM - FRontiers in Arctic marine Monitoring: Permanent Observations in a Gateway to the Arctic Ocean , OCEANS - Bergen, 2013 MTS/IEEE . doi: 10.1109/OCEANS-Bergen.2013.6608008 49. Soltwedel [...] Biological experiments at a long-term station in the deep Arctic Ocean using the Remotely Operated Vehicle VICTOR 6000 (Poster) , Arctic Ocean Conference, Stockholm, Schweden.-07.11.2001 . 291. Soltwedel [...] variation due to warming of the Arctic ocean , ASLO Conference, Granada, Spain, 22 February 2015 - 27 February 2015 . 6. Soltwedel, T. (2015): FRAM - FRontiers in Arctic marine Monitoring: Permanent Ob

O: Comparison of the zooplankton diversity under different ice conditions in the central deep Arctic Ocean in 1990-s and 2000-s K. Kosobokova , Elizaveta Ershova 14:00-14:15 WP5- IORAS: Results of the [...] 13:30-13:50 WP1-AARI: Observed atmospheric and sea-ice changes and feedbacks: Svalbard area and Euarasian Arctic - in situ observations and ice charting. B. Ivanov, V. Smolyanitsky, T. Alekseeva 13:50-14:10 Discussion [...] 16:10-16:25 WP3- AWI-AC: The role of synoptic-planetary wave interactions for the linkage between Arctic climate change and mid-latitude atmospheric circulation changes D. Handorf 16:25-16:40 WP3- IAPRAS:

Woodhouse, M. T.: Influence of oceanic dimethyl sulfide emissions on cloud condensation nuclei concentra- tions and seasonality over the remote Southern Hemisphere oceans: A global model study, J. Geophys [...] free Antarctic continent represents an outstanding case: sur- rounded and isolated by the Southern Ocean from other con- tinents, NPF should be inherently linked with the advection of marine air masses. [...] mechanisms of NPF and the influence on CCN concentra- tions in the remote atmosphere of the Southern Ocean. The work of Korhonen et al. (2008) revealed a weaker impact of DMS-derived secondary aerosol on marine

O pen A ccess Hydrology and Earth System Sciences O pen A ccess Discussions Ocean Science O pen A ccess O pen A ccess Ocean Science Discussions Solid Earth O pen A ccess O pen A ccess Solid Earth Discussions [...] on snow may have substantially contributed to the rapid warming entailed by sea ice loss in the Arctic (Hansen et al., 2005). Concerning the global distribution of carbonaceous aerosols, there is a major [...] ments indicate a geographical gradient of atmospheric BC concentrations from South Pole to Southern Ocean with min- imum BC concentrations at South Pole (around 0.65 ng m−3, Bodhaine, 1995), slightly increasing

still remains un- known. A possible mechanism for the release of gaseous iodine compounds from the ocean is the production of molecular iodine (I2) and hypoiodus acid (HOI) in the surface seawa- ter by reaction [...] of IO is a widespread phenomenon along the Antarctic coast and over the sea ice covered Antarctic ocean. The presence of iodine monoxide in the ppt range is ex- pected to have a significant impact on the [...] amounts of tropo- spheric IO in Spitsbergen byWittrock et al.(2000), IO has not been detected in the Arctic. It is yet unknown why this hemispheric asymmetry exists and what the sources for the elevated levels

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

is what made MOSAiC possible. MOSAiC – The largest Central Arctic expedition of all time. The icebreaker Polarstern will drift through the Arctic sea ice for a year to capture scientific data from the n [...] better understand- ing of truly fundamental processes, like the nature of energy flows in the Arctic, how Arctic clouds func- tion, and how life below and with- in the ice changes throughout the year. But [...] saved. On the same day the Fram managed to free herself from the ice, after drifting across the Arctic Ocean for 35 months. (mw) Link to MOSAiC app Printed by: BerlinDruck GmbH + Co KG 100 % chlorine-free

Effect in the Arctic Ecosystem - is to assess the consequences of the decline in silicic acid concentrations in the inflow of North Atlantic water into the Eurasian Arctic on the Arctic marine ecosystem [...] found here . ARJEL To better understand the role of jellies in the Arctic seas, the Helmholtz Young Investigator project ARJEL - ARctic JELlifish, will combine the most recent technologies in optics, acoustics [...] biodiversity and zooplankton interactions we aim to improve current projections of the fate of the Arctic Ocean in times of climate change. Link to the project page SO-CLIM Link to the project webpage DOUB