first aerial survey flights over the Arctic this year. The flights, which will extend far into the Central Arctic, will support the investigation of the atmosphere and sea ice, and supplement the MOSAiC [...] expedition’s extensive research agenda. Core research priorities include cloud formation over the Arctic Ocean and the question as to whether the sea ice observed during MOSAiC was generally thicker or thinner [...] Arctic
Following a five-month mandatory delay due to the coronavirus pandemic, on August 30th the two German polar research aircraft Polar 5 and Polar 6 will launch from Svalbard to conduct their first

layers of the ground, oceanic microseisms can spread over many hundreds of kilometres. It is now well researched how strong storms not only generate large waves, but also increased oceanic microseisms activity [...] other way round: what does oceanic microseisms tell us about the nature of the ice over the course of the seasons? To answer these questions, we use data from our ice-going ocean-bottom seismometers (OBS) [...] microseismics were also recorded, which we are currently analysing. Map of the Arctic and Antarctic. The red stars mark the oceanic microseisms research projects. (Graphic: Alfred-Wegener-Institut) Contact

remote sensing data alone, as the satellite ocean color algorithms are known to perform poorly at polar latitudes even if developed explicitly for the Arctic waters. Gaps in satellite data, which occur [...] for satellite applications. Ocean Science, 9 (2), pp. 431-445. doi: 10.5194/os-9-431-2013 , hdl:10013/epic.41331 Other references: Antoine, D. and A. Morel (1996). Oceanic primary production: I. Adaptation [...] PhD Thesis Alexandra Cherkasheva 2009-2014 Arctic phytoplankton today deserve special attention as they are already living in waters with most prominent climate change effect, which are shifting towards

the ice of the Arctic, unknown habitats conceal an unexpected variety of living beings. On October 23rd, 46 scientists are expected to return to the home port in Bremerhaven from an Arctic expedition with [...] with the research vessel Polarstern. Over the past six weeks, they had explored life in ice, ocean and seabed with new robots and camera systems.

develops, runs and analyses global ocean biogeochemistry models, with a special interest in the polar regions. A special focus is on feedbacks between climate change and the ocean carbon cycle. The group hosts [...] (see Research ). We contribute to and coordinate the ocean carbon sink estimate in the Global Carbon Budget , particularly the ensemble of Global Ocean Biogeochemistry Models that includes FESOM-REcoM." [...] feedbacks in the carbon cycle and in the marine ecosystem, with a special interest in the Arctic and the Southern Oceans. Surface chloropyll a concentration in an eddy-resolving simulation (1 km horizontal

million metric tons of CO 2 in the Arctic deep sea for millennia. In this region alone, a previously unknown transport route uses the biological carbon pump and ocean currents to absorb atmospheric CO 2

the impact of the Arctic on global climate. In addition to this major campaign, numerous field work activities take place every year in the mainland Arctic and in the adjacent Arctic Ocean. The coast plays [...] drifting Observatory for the Study of Arctic Climate ). From fall 2019 to fall 2020, the German research icebreaker POLARSTERN drifted frozen through the Arctic Ocean. The data collected will be valuable [...] Ecological processes in the terrestrial Arctic: Prof. Dr. Ulrike Herzschuh • Permafrost processes in the Arctic: Prof. Dr. Guido Grosse • Atmospheric processes in the Arctic: Prof. Dr. Markus Rex AWI Research

study of Arctic Ocean surface sediments (Fig. 2; Xiao et al., 2015 ). During the last years, a large number of IP 25 /PIP 25 studies have been carried out to reconstruct the late Quaternary Arctic sea-ice [...] Polar sea ice variability - Arctic Our ability to quantitatively reconstruct Arctic paleo-sea-ice distributions has been greatly improved by a novel biomarker approach which is based on the determination [...] SeaIce4). In order to fully establish the IP 25 approach as key proxy for the reconstruction of past Arctic Ocean sea-ice conditions, however, more ground-truth data related to the synthesis, diagenesis, and

is thought to be the warming of Atlantic water that flows from Europe’s Norwegian Sea into the Arctic Ocean, passing through the Barents Sea and the Fram Strait in the process. However, not all the Atlantic [...] In the last few decades, the Arctic sea ice has receded ever further, including increasingly in winter when the extent of sea ice is at its most prominent. One of the main drivers of this development is

of Tromsø. Escorted by the Russian icebreaker Akademik Fedorov, she will set sail for the Central Arctic. On board researchers will investigate a region that is virtually inaccessible in winter, and which [...] global climate. They will gather urgently needed data on the interactions between the atmosphere, ocean and sea ice, as well as on the ecosystem. Thanks to the collaboration between international experts