Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

RV Polarstern on its way into the Antarctic

16.10.2009
Journey through the polar South Pacific up to New Zealand

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
Further information:
http://www.awi.de/

More articles from Earth Sciences:

nachricht Climate satellite: Tracking methane with robust laser technology
22.06.2017 | Fraunhofer-Gesellschaft

nachricht How reliable are shells as climate archives?
21.06.2017 | Leibniz-Zentrum für Marine Tropenforschung (ZMT)

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

Im Focus: Optoelectronic Inline Measurement – Accurate to the Nanometer

Germany counts high-precision manufacturing processes among its advantages as a location. It’s not just the aerospace and automotive industries that require almost waste-free, high-precision manufacturing to provide an efficient way of testing the shape and orientation tolerances of products. Since current inline measurement technology not yet provides the required accuracy, the Fraunhofer Institute for Laser Technology ILT is collaborating with four renowned industry partners in the INSPIRE project to develop inline sensors with a new accuracy class. Funded by the German Federal Ministry of Education and Research (BMBF), the project is scheduled to run until the end of 2019.

New Manufacturing Technologies for New Products

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Hubble captures massive dead disk galaxy that challenges theories of galaxy evolution

22.06.2017 | Physics and Astronomy

New femto-camera with quadrillion fractions of a second resolution

22.06.2017 | Physics and Astronomy

Rice U. chemists create 3-D printed graphene foam

22.06.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>