119 scientists from seven different nations will research the whole spectrum of current Arctic topics in three journey stages: climate history and current climate development, effects on the ecosystem ranging from bacteria to marine mammals, and also geoscientific questions regarding sediment structure and tectonics of the Arctic. Polarstern is expected back in Bremerhaven September 25th.
The first journey stage will lead the researchers via the Greenland Sea and the Fram Strait to Longyearbyen on Spitsbergen. The area has increasingly come into the centre of attention of oceanographic research because oceanic key processes happen there and because the region reacts extremely sensitive towards climate change. Moorings of long-term measurements are, among other things, exchanged there and data on temperature and salinity of the ocean are gained - long-term measurements of this kind are indispensible for climate related marine research. Examinations on geology and the Arctic ecosystem are also conducted.
The second journey stage begins on July 10th and is concentrated on two study areas, the so-called Hausgarten and the Hakon-Mosby mud volcano. The Hausgarten is a deep sea long-term observatory consisting nowadays of 16 stations along a depth profile ranging from 1.200 to 5.500 metres. Moorings are deployed at selected positions along the 2.500 m depth line which are annually exchanged since 1999 in the summer months. The samples and measurement data gained this way document the influence of climate changes and their consequences for the region of the Arctic deep sea and its living organisms. The Hausgarten is an important part of numerous European research projects by now, because just a few comparable multidisciplinary long-term examinations exist. The Hakon-Mosby mud volcano lies in 1.250 m water depth at the Norwegian continental shelf of the south-western Barent Sea and has regularly been explored in the past by Polarstern expeditions. A long-term observatory to continually measure geological, physical, chemical and biological parameters in combination will be installed this year to understand mud volcanism. The Hakon-Mosby mud volcano is a specifically chosen examination area of various EU projects.
The third and last journey stage begins on August 5th in Reykjavik (Iceland) and concentrates on geoscientific questions. The exact study area for the geoscientific measurements in the western Greenland Sea is dependent on Arctic ice cover in this summer. Seismologic examinations are meant to deliver new insights into the geological history of the East Greenland shelf. Researchers from Belgium will also count birds and whales in the framework of a long-term project to document their distribution, just like in the first journey stage. RV Polarstern is expected to enter port in Bremerhaven on September 25th.
The Alfred Wegener Institute carries out research in the Arctic and Antarctic as well as in the high and mid latitude oceans. The institute coordinates German polar research and provides international science with important infrastructure, e.g. the research icebreaker Polarstern and research stations in the Arctic and Antarctic. The Alfred Wegener Institute is one of 15 research centres within the Helmholtz Association, Germany's largest scientific organization.
Margarete Pauls | idw
From volcano's slope, NASA instrument looks sky high and to the future
27.04.2017 | NASA/Goddard Space Flight Center
Penn researchers quantify the changes that lightning inspires in rock
27.04.2017 | University of Pennsylvania
More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.
Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...
Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...
The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...
The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...
Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.
Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...
20.04.2017 | Event News
18.04.2017 | Event News
03.04.2017 | Event News
27.04.2017 | Life Sciences
27.04.2017 | Physics and Astronomy
27.04.2017 | Earth Sciences