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 summer sea-ice extent [...] 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 expedition will be on the warming

conduct studies at a major long-term monitoring station in the Arctic: the AWI’s Hausgarten observatory in the Fram Strait, where experts from various disciplines are investigating all aspects of the ecosystem, from the water’s surface to the ocean depths, in order to determine the impacts of climate change on biodiversity in the Arctic. After roughly a month underway, in [...] one-year-long MOSAiC expedition, prior to leaving for the Central Arctic on 20 September.

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 [...] 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 water flowing into the

Hausgarten/FRAM (Frontiers in Arctic Marine Monitoring) Sampling stations in the Hausgarten observatory: Experimental sites (red circles), mooring sites (black triangles [...] benthos. The Fram Strait essentially forms a connection between Arctic and Antlantic waters and due to the Fram Straits importance for global ocean circulation, it is vital to understand the physical [...] export processes in the Arctic.

to make a joint effort to enclose the Arctic Ocean with hydrographic observation lines (Figure 1). A method to treat the Arctic as a single box bounded by hydrographic lines [...] understand the Arctic Ocean’s role on the carbonate system. Figure 2: Net oceanic and sea ice FW transport (m3s-1) time series. The transport estimate [...] of pan-Arctic mooring array monitor the major oceanic heat and FW exchanges between the Arctic Ocean and surrounding Oceans? (2) Where is the most

good fifty scientific expedition participants will explore the Arctic in transition as sea ice extent reaches its annual minimum in September. They will explore the biology, chemistry and physics of sea ice as well as the effects of sea ice retreat on the entire ocean system from the surface to the deep sea. Eleven years ago, Antje Boetius was part of the largest ever sea ice minumum in the Arctic [...] Now she is returning with her team to compare the state of the Arctic today - also with the data from the MOSAiC expedition 2019/20.

century hydrographic measurements have been carried out in the Arctic Ocean. Although today the Arctic is a hotspot of climate change, data sampling is still sparse due to the large sea ice cover. Yet both the historical and the… Find out more ARCGATE The Arctic boundary has been observed over many years to better understand and monitor the exchanges between the Arctic Ocean and its neighboring oceans. The unique geometry of the Arctic—surrounded by the land masses of North America, Greenland and… Find out more Arctic Long-term

. It also uncovers the various factors controlling this major Arctic surface current, including warmer temperatures which could increase the spread of human-made pollutants. The Transpolar Drift carries [...] suspended matter from the Siberian shelves across the central Arctic towards the Fram Strait channel, which connects to the Nordic Seas. This cross-Arctic flow influences the delivery of both natural [...] and heavy metals – from Siberian river systems into the central Arctic and the North Atlantic. This material affects Arctic biogeochemistry and ecosystems, while the fresh water itself alters ocean

Projects AFIN: Antarctic Fast Ice Network Changing Arctic Ocean SIN'XS-Sea Ice thickness INtercomparison eXerciSe Arctic Passion Tara Polar Station ESA: Climate Change Initiative MOSAiC [...] Mission Performance ArcSolution SNOWflAke IceBird Transdrift: Arctic Ice-Ocean-Interaction CONTRASTS

the ice covering the Arctic Ocean, as well as to the sea ice in the Southern Ocean, surrounding the continent of Antarctica. On the other hand, ocean currents [...] overturning of the water masses in the two polar regions makes the Arctic and Southern Oceans key regions in the context of ocean circulation. At the AWI, we investigate the characteristics and role of [...] Strait between Greenland and Svalbard, the Eurasian sector of the Arctic Ocean, and the Weddell Sea in the Atlantic sector of the Southern Ocean. Contact Torsten Kanzow +49(471)4831-2913 E-Mail CV Publications