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

into the Arctic season and today also we scientists and technicians finally came on board. During the next seven weeks we will, among other things, investigate the interactions between ocean and glaciers

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

of our expedition! After we brought the last working device back on deck – a CTD measurement – the Arctic said goodbye to us in a very special way: all of a sudden a polar bear was swimming behind the stern [...] the northernmost point of our journey at about 83°N. We travelled to Gakkel Ridge, an active mid-ocean spreading ridge, where new seafloor is continuously being formed. For once we weren’t interested in [...] the sea ice surrounding us but in the seafloor about 4000 m below the ship. There we deployed eight ocean bottom seismometers. They will be left an entire year at the seafloor, recording tiny earthquakes

processes between the atmosphere and the ocean. The observed sea ice changes affect the climate and ecosystem, extending to our latitudes. The decline of Arctic sea ice in area and volume is one of the [...] Observer | 28.07.2020 Sea ice extent in the Arctic reaches historical low in July Find out more > Carbon Brief | 18.11.2019 Inside MOSAiC: How a year-long Arctic expedition is helping climate science Find [...] future, we will focus more on studying the physical snow and ice properties in interaction with the ocean and atmosphere, but also study linkages to the ecosystem. We will continue expanding our measurements

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

A major new project will help benchmark biodiversity change in the Arctic Ocean and guide conservation efforts by identifying unique species and assessing their extinction risk. The research led by scientists

kinds of observations in Arctic and Antarctic regions are most urgently needed to improve our understanding, our models, and our predictions of atmosphere, sea ice, and ocean? Answers to these and many [...] on. A "weather forecast" for the Arctic No-one can say for sure whether the next few days will be snowy or sunny at the North Pole: the weather forecast for the Arctic is far less reliable than for other [...] Ryanair doesn't fly to the Arctic yet The Year of Polar Prediction officially began in May. Through mid 2019, there will be increased measurements of the weather, sea ice and oceans in order to improve en

follow a twofold approach. On the one hand we operate observational and measurement systems for the Arctic and Antarctic, and on the other hand we push the development, optimization and verification of regional [...] aircraft and satellite systems for our observations and are concerned with the development of the ocean, atmosphere, sea ice and ice shields. Process studies to assess small-scale phenomena on short time [...] Lecture series "Alfred Wegener Lectures in Climate Sciences" Magazine on climate research in the Arctic and Antarctic