This is the central question field-researchers, operators of long term observatories and modellers from 18 partner institutions in the EU intend to answer with the PAGE21 project. By pooling expertise from various subjects, the scientists aim to deliver a valuable foundation for the United Nations 5th World Climate Report.
"I'm looking forward to close co-operation between the leading scientists in European permafrost research in the Arctic" said Prof. Dr. Hans-Wolfgang Hubberten of the Research Unit Potsdam of the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association. The mineralogist leads the PAGE 21 project, which has been allotted almost 10 million Euros, of which just under 7 million Euros are provided by the 7th Framework Programme of the European Union. The acronym stands for “Changing permafrost in the Arctic and its Global Effects in the 21st Century".
“We need to improve our basic understanding of the physical and biogeochemical processes in permafrost so as to be able to provide more reliable predictions of future global climate change," elaborated Hubberten. About 50 percent of the underground organic carbon occurring worldwide is found in northern permafrost regions. This is more than double the amount of carbon currently in the atmosphere in the form of the greenhouse gases carbon dioxide and methane. Added to this, the effects of climate change are most severe and rapid in the Arctic. Permafrost is already thawing and releasing greenhouse gases in most parts of the Arctic, which exacerbates these effects.
Many of the mechanisms for release are in themselves fundamentally understood. However, when it comes to the quantification of single processes, the available data is sparse. This means that field scientists are called upon, for example, to deploy flux chambers on the permafrost in Siberia, to measure escaping gases when the ground thaws in the summer. In order to capture the changes in gas release over time and space, these measurements must be done repeatedly and cover larger areas as well as longer periods during the year. By standardizing measurement methods between partners, the scientists can directly compare their data. In doing this, the project partners of PAGE21 are expecting to obtain high-quality data records.
These records from the permafrost are a prerequisite basis for the improvement of global climate models. "Today's global models are frequently inaccurate because the permafrost regions, with all their feedback mechanisms, are under-represented." says Hubberten. An urgent goal of PAGE21 is to undertake steps to improve the models, which provide the basis for future mitigation and adaptation strategies confronting society in the 21st century.Background Information:
Partners: Alfred Wegener Institute for Polar and Marine Research (Germany), The University Centre in Svalbard (Norway), Stockholms Universitet (Sweden), Vrije Universiteit Amsterdam (Netherlands), Technical University of Vienna (Austria), Université Joseph Fourier, Grenoble (France), University of Exeter (UK), Max-Planck-Gesellschaft (Germany), Lund University (Sweden), University of Copenhagen (Denmark), University of Hamburg (Germany), Commissariat à l'Energie Atomique et aux Energies alternatives (France), Met Office, for and on behalf of the Secretary of State for the Defence of the United Kingdom, Great Britain and Northern Ireland (UK), Finnish Meteorological Institute (Finland), University of Eastern Finland (Finland), Institute for Biological Problems of Cryolithozone (Russia), Arctic Portal (Iceland), Moscow State University (Russia).
The Alfred Wegener Institute conducts research in the Arctic, Antarctic and oceans of the high and middle latitudes. It coordinates polar research in Germany and provides major infrastructure to the international scientific community, such as the research icebreaker Polarstern and stations in the Arctic and Antarctica. The Alfred Wegener Institute is one of the seventeen research centres of the Helmholtz Association, the largest scientific organisation in Germany.
Ralf Röchert | idw
New research calculates capacity of North American forests to sequester carbon
16.07.2018 | University of California - Santa Cruz
Scientists discover Earth's youngest banded iron formation in western China
12.07.2018 | University of Alberta
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.
Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
17.07.2018 | Information Technology
17.07.2018 | Materials Sciences
17.07.2018 | Power and Electrical Engineering