Research vessel Polarstern will start its journey October 16th from Bremerhaven to its 26th expedition into Antarctica. The expedition consists of four legs and leads Polarstern, operated by the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association, at first to Punta Arenas.
Researchers from the Leibniz Institute of Marine Sciences at Kiel University (IFM-GEOMAR), from the Leibniz Institute for Tropospheric Research (IfT) Leipzig, from GKSS Research Centre Geesthacht and from the Alfred Wegner Institute will further develop the system OCEANET during the first and last leg which is meant to experimentally collect data on mass and energy exchange between the ocean and atmosphere. The aim is to autonomously measure important environmental parameters onboard available cargo- and research vessels.
Mainly marine geologists will come aboard in Chile at the end of November to cross the polar South Pacific on Polarstern for the first time ever. 43 researchers and technicians around cruise leader Dr. Rainer Gersonde from the Alfred Wegener Institute want to take marine geological samples at 40 sites to collect data on the last million years of climate history by means of deep sea deposits. The analysis happens within the framework of national and international projects. The researchers want to determine the role of the polar South Pacific on the development of global climatic processes. This area of bad weather has so far rarely been investigated. As a formation site of deep and intermediate water masses it transports nutrients and cold water into the northern hemisphere and influences the climate of the earth. It is a key region for investigations on the stability of the West Antarctic ice shield in the course of past glacial and interglacial periods because the polar South Pacific borders in the South on the West Antarctic ice masses. This ice shield is considered unstable under warm climate conditions; its melting could cause a rise of the global sea level from three to five metres. Next to taking probes for climate and sea level related questions, the only known impact area in the ocean of an asteroid one kilometre big is investigated. The geoscientific work includes seismic profiles in order to make a proposal for a deep sea drilling location in the framework of the international "Integrated Ocean Drilling Program" (IODP). The Antarctic climate and glaciation history of the last 40 million years is meant to be documented by means of this drilling.
After two months, the second leg of the journey will end in Wellington, where the German embassy will give a welcome on the occasion of Polarstern's first running into port in New Zealand. The third leg of the journey will begin at the end of January which will lead back to Chile on a more southerly route than the one before. Polarstern will enter port in Punta Arenas again at the start of April 2010. Then it will make its way back to Bremerhaven where it is expected May 17th 2010.
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 16 research centres within the Helmholtz Association, Germany's largest scientific organization.
Margarete Pauls | idw
NASA's Terra Satellite glares at the 37-mile wide eye of Super Typhoon Trami
25.09.2018 | NASA/Goddard Space Flight Center
NASA balloon mission captures electric blue clouds
24.09.2018 | NASA/Goddard Space Flight Center
Our brain is a complex network with innumerable connections between cells. Neuronal cells have long thin extensions, so-called axons, which are branched to increase the number of interactions. Researchers at the Max Planck Institute of Biochemistry (MPIB) have collaborated with researchers from Portugal and France to study cellular branching processes. They demonstrated a novel mechanism that induces branching of microtubules, an intracellular support system. The newly discovered dynamics of microtubules has a key role in neuronal development. The results were recently published in the journal Nature Cell Biology.
From the twigs of trees to railroad switches – our environment teems with rigid branched objects. These objects are so omnipresent in our lives, we barely...
The Fraunhofer FEP has been involved in developing processes and equipment for cleaning, sterilization, and surface modification for decades. The CleanHand Network for development of systems and technologies to clean surfaces, materials, and objects was established in May 2018 to bundle the expertise of many partnering organizations. As a partner in the CleanHand Network, Fraunhofer FEP will present the Network and current research topics of the Institute in the field of hygiene and cleaning at the parts2clean trade fair, October 23-25, 2018 in Stuttgart, at the booth of the Fraunhofer Cleaning Technology Alliance (Hall 5, Booth C31).
Test reports and studies on the cleanliness of European motorway rest areas, hotel beds, and outdoor pools increasingly appear in the press, especially during...
The building blocks of matter in our universe were formed in the first 10 microseconds of its existence, according to the currently accepted scientific picture. After the Big Bang about 13.7 billion years ago, matter consisted mainly of quarks and gluons, two types of elementary particles whose interactions are governed by quantum chromodynamics (QCD), the theory of strong interaction. In the early universe, these particles moved (nearly) freely in a quark-gluon plasma.
This is a joint press release of University Muenster and Heidelberg as well as the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt.
Then, in a phase transition, they combined and formed hadrons, among them the building blocks of atomic nuclei, protons and neutrons. In the current issue of...
Thin-film solar cells made of crystalline silicon are inexpensive and achieve efficiencies of a good 14 percent. However, they could do even better if their shiny surfaces reflected less light. A team led by Prof. Christiane Becker from the Helmholtz-Zentrum Berlin (HZB) has now patented a sophisticated new solution to this problem.
"It is not enough simply to bring more light into the cell," says Christiane Becker. Such surface structures can even ultimately reduce the efficiency by...
A study in the journal Bulletin of Marine Science describes a new, blood-red species of octocoral found in Panama. The species in the genus Thesea was discovered in the threatened low-light reef environment on Hannibal Bank, 60 kilometers off mainland Pacific Panama, by researchers at the Smithsonian Tropical Research Institute in Panama (STRI) and the Centro de Investigación en Ciencias del Mar y Limnología (CIMAR) at the University of Costa Rica.
Scientists established the new species, Thesea dalioi, by comparing its physical traits, such as branch thickness and the bright red colony color, with the...
21.09.2018 | Event News
03.09.2018 | Event News
27.08.2018 | Event News
26.09.2018 | Life Sciences
26.09.2018 | Life Sciences
26.09.2018 | Life Sciences