moritz.zeising@awi.de
+49(471)4831-2803
Klußmannstraße 3d, 27570 Bremerhaven

sofia.kuzmina@awi.de
, Bremerhaven

atmosphere and the ocean. The climate of the Arctic is subject to visible changes and the sea-ice albedo feedback mechanism acts as an amplifier of climate change. The observed decrease of Arctic summer sea ice [...] coupled ice-ocean-atmosphere system and a growing radiative forcing associated with rising concentrations of atmospheric greenhouse gases. The attribution of ongoing changes in the Arctic and Antarctic [...] of key processes in the Arctic and Antarctic climate system. Major gaps and uncertainties exist in the knowledge of processes governing e .g. the build-up of aerosols in the Arctic and its role for climate

Nippon Foundation (NF) Ocean Affairs Department, Prof. Dr Antje Boetius, as AWI Director, Dr Sophie Seeyave, representative and CEO of the Partnership for Observation of the Global Ocean (POGO), and State Secretary [...] Centre of Excellence, around half returned to their home countries, while the others moved on to the Arctic, the Antarctic, Canada, Australia, the Netherlands or Ireland, and some stayed in Germany at the [...] we will all remain connected in the future - as researchers and as people who are committed to our oceans in times of climate change. Pedro Montoro (alumni) I am Pedro Montoro, originally from Cuba and attended

differences between data products 7eolab.dk Coupled sea ice-ocean model Max-Planck Institute Ocean Model (MPIOM) global setup with focus over the Arctic Jungclaus et al., 2012 Niederdrenk et al., 2017 8eolab [...] Hendricksf, Michael Karcherb,f,Hajo Eickeng, and Ola Gråbakh aThe Inversion Lab, Hamburg, Germany bOcean Atmosphere Systems, Hamburg, Germany ceolab.dk, København, Denmark dLund University, Sweden eMax Planck [...] observational scenarios in terms of their constraints on target quantities of interest ● Based upon Arctic Mission Benefit Analysis (ArcMBA) system that was developed within an ESA-funded study This presentation:

SIT bias impacts Arctic circulation wCDA of ocean hydrography: 30 members, monthly assimilation, 1980-2010 Constrained ocean hydrography reduces bias(SIT) ! Upper ocean: fresher Upper ocean: more saline + [...] skill? ice+ocean DA Strongly enhanced skill in melting season + sCDA of SIC: Is assimilation of ocean data helpful in the Arctic Basin? Is assimilation of ocean data helpful in the Arctic Basin? 23 May [...] Nordic Seas 2) Arctic basin The role of ocean and sea ice initialisation in the coupled Earth system OHT & winter SI May SIT & Sep SIC 11 1) Nordic Seas 2) Arctic basin The role of ocean and sea ice in

For the past 25 years, the Alfred Wegener Institute has operated a long-term observatory in the Arctic deep sea: the HAUSGARTEN. Located between Greenland and Svalbard, it is where researchers investigate [...] investigate natural and climate-change-related changes in a polar, marine ecosystem – from the ocean’s surface to the seafloor, 5,500 metres below. Many of the observatory’s stations are located below the sea

Research aircraft from the Alfred Wegener Institute have been surveying the ice-covered Arctic Ocean for 30 years. The immense effort of the past 52 expeditions has paid off: 40,000 km of measurement data [...] aeroplane- and helicopter-based measurement series in the world that has been carried out in the Arctic over such a long period. Currently, two Basler BT-67 aircraft are in operation: the Polar 5 and Polar

Vessel POLARSTERN to the Atlantic Ocean in 2014, edited by Rainer Knust and Frank Niessen 695 (2016) The Expedition PS93.1 of the Research Vessel POLARSTERN to the Arctic Ocean in 2015, edited by Ruediger Stein [...] Stein 694 (2016) The Expedition PS92 of the Research Vessel POLARSTERN to the Arctic Ocean in 2015, edited by Ilka Peeken 693 (2015) The Expedition PS93.2 of the Research Vessel POLARSTERN to the Fram [...] The Expeditions PS95.1 and PS95.2 of the Research Vessel POLARSTERN to the Atlantic Ocean in 2015 Edited by Rainer Knust and Karin Lochte with contributions of the participants Berichte zur Polar- und

region? Svalbard is a key region of climate change in the Arctic. On the one hand it is close to the Atlantic water inflow to the Central Arctic Ocean, and on the other hand it is located along the North Atlantic [...] by other stations in the Ny-Ålesund Atmosphere Flagship Program , and with Arctic wide observations in the International Arctic Systems for Observing the Atmosphere (IASOA) . Major activities are related [...] Changes observed in this region with increased heat advection can be seen as a precursor for the future Arctic climate. The section “Atmospheric Physics” is operating a large part of the atmospheric observations