Stable Isotope Facility Bremerhaven Nutrient Facility Observatories Ocean: FRAM Water: COSYNA Meteorology Geophysics Ships Polarstern Heincke Uthörn Mya II Aade Stations Neumayer Station III Arctic Station

TRANSDRIFT -Project are: to assess the influence of sea-ice and ocean dynamics in the Laptev Sea on the transpolar drift; to investigate changes in the arctic halocline, water mass formation, and [...] of Ocean ACIDification) Project funded by the German Ministry of Education and Research (BMBF) Duration: 01.10.2015 - 31.12.2017 Coordinator [...] stressors, and what are the consequences for marine ecosystems and ocean biogeochemical cycles? Contact: A. Boetius, F. Wenzhöfer

just snow. There are clear differences if you compare, e.g., the Arctic and Antarctic. While the snow on the Arctic sea ice is completely melting over the course of the year, and so-called meltwater ponds [...] global warming, which means that in the future, in the Southern Ocean, the snow cover might also start melting significantly during summer. Today, we are already observing a seasonal change in the snow [...] it insulates, and as such reduces the transfer of heat from the ocean to the atmosphere. However, the less warmth the ocean gives off, the thinner the sea ice remains. Therefore the snow not only

. Plastic particles are broken down in the ocean by sunlight, temperature fluctuations, mechanical abrasion and wave action into small fragments known as microplastics. These tiny [...] (Video) | 25.04.2018 Plastic pollution: record levels found in Arctic sea ice Find out more > BBC | 24.04.2018 Record concentration of microplastics found in Arctic Find out more > Dialogue & Lectures Policy advice Arctic Monitoring & Assessment Programme (AMAP) Member of the Expert Group on Microplastic Monitoring in the Arctic

mapping initiatives including the General Bathymetric Chart of the Oceans (GEBCO) , the International Bathymetric Chart of the Arctic Ocean (IBCAO) ,the International Bathymetric Chart of the Southern Ocean [...] 2030) , a project with the ambitious goal to map the world’s oceans by 2030, and hosts the Seabed 2030 Southern Ocean Regional Center (SORC) . SORC’s and IBCSO’ s responsibility is to produce the best possible authoritative map of the Southern Ocean, the South Atlantic, South Pacific, and South Indian Ocean south of 50°S. The maps we produce are all publicly available in PANGAEA

ocean floor of the East greenland shelf. (Photo: Maciej Telesinski) [29 August 2017] Temperatures in the Arctic are currently climbing [...] in a glacial climate state. doi: 10.1038/NGEO2974 . How the Arctic Ocean became saline FS Heincke in Spitsbergen (Photo: Alfred-Wegener-Institut) [06 June 2017] The Arctic Ocean was once a gigantic [...] Jokat, Gregor Knorr, Gerrit Lohmann: Threshold in North Atlantic-Arctic Ocean circulation controlled by the subsidence of the Greenland-Scotland Ridge. Nature Communications. doi: 10.1038/NCOMMS15681 .

An entire year trapped in the Arctic ice MOSAiC - Multidisciplinary drifting Observatory for the Study of Arctic Climate It is the largest-scale Arctic research expedition [...] , the German research icebreaker Polarstern drifted through the Arctic Ocean, trapped in the ice. Participants from institutions from more than 20 countries studied the Arctic over the course of the year [...] for miles. Hardly any other region has warmed as much as the Arctic in recent decades. Therefore, the MOSAiC project's goal was to reach a better understanding of the influence that the Arctic has on

in Northern European Waters) is a European project funded by JPI Oceans and will create new knowledge and improve our mechanistic understanding of the sources, transport, occurrence, and fate of small microplastics from European waters to the Arctic. The consortium consists of 15 partners in 7 countries, with more than 50 people involved in the research activities.

Anniversary
40 years of research in the Arctic, Antarctic and in coastal regions: on 15 July, the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI) [...] for climate research in the two polar regions and the world’s oceans.

vertical profiles of water mass properties in the ice-covered oceans. The systems are moored on the ice and measure temperature, salinity, and pressure in the upper 800 to 1000 meters of the water [...] example, to study changes in the freshwater content of the upper Arctic Ocean, as in the NORTHATLANTIC project. Together with higher-precision data from ship-based expeditions, the data from these autonomous [...] measuring systems is coordinated through the International Arctic Buoy Programme. Contacts Dr. Benjamin Rabe +49(471)4831-2403 Benjamin Rabe@awi. Dr. Mario Hoppmann +49(471)4831-2907 Mario.Hoppmann