After completing their simulation component in the German-Indonesian Tsunami Early Warning System (GITEWS), the team for tsunami modelling of the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association has presented the currently leading software system for tsunami events with the potential for catastrophe.
It is now being integrated into the Decision Support System (DSS) of the German Aerospace Center in Oberpfaffenhofen. It is to resume its test mode in Indonesia in November.
"Within slightly more than two years, my team has developed, with the help of current software technology, the most modern and flexible simulation system for one of the most dreaded natural disasters of the world", explains Dr Jörn Behrens, Head of the Tsunami Modelling Group of the Alfred Wegener Institute.
"In contrast to other currently available Tsunami Early Warning Systems, it does not only use earthquake data for its ultra-fast situational analysis, but it combines various measurements to a robust, precise, and quick situation report." Next to seismic data (earthquake parameters), also gauge and buoy data (wave heights), and GPS data (deformations of the earth's crust) can be incorporated into the calculations.
All these data run together in the DSS, and the picture of the general situation supports decision-makers - for example after a seaquake - to evaluate more reliably and quicker than before, whether it poses a threat for residents of the bordering coastline in the form of rising water waves. Accordingly, warnings reach affected persons earlier than before, and it leaves more time to take disaster prevention measures.
Furthermore, simulation results from different institutes can seamlessly be integrated into the system. The team from the Alfred Wegener Institute will provide the warning system until November 2008 with already around 1500 high-resolution tsunami scenarios. The newly developed simulation system compares these scenarios with incoming real measurement data in a matter of seconds and deduces its forecast.
The Indonesian partners work on the completion of the database at the same time. Together with colleagues from the Indonesian "Institute of Technology Bandung", a connection to approximately 160.000 local tsunami scenarios they calculated is now being incorporated into the system developed at the Alfred Wegener Institute in Bremerhaven. They allow an essential expansion of the database.
"In regard to the interface to other programs, we adhere to open standards, which control the exchange of data in the world of computers. This way, external scenarios can seamlessly be integrated, and we can adapt the simulation model quickly to other marine areas of the world, for instance the Mediterranean Sea," says Behrens about the perspective for further early warning systems.
The Tsunami Modelling group consists of seven researchers and PhD students, among them one PhD student from Indonesia. It was established at the beginning of 2006, and has developed, next to the simulation system presented here, the simulation software TsunAWI, which is one of the bases for the computation of tsunami scenarios. The software has mastered its practical test: it computed the resulting wave heights precisely, when an earthquake of magnitude 7,9 near Bengkulu/Western Sumatra triggered a tsunami on September 13th 2007.
The aim of GITEWS is to minimize the consequences of natural disasters by means of an early warning system. Nevertheless, a natural phenomenon like the tsunami in the year 2004 cannot be prevented, and catastrophes of this kind will always cause casualties, regardless of a perfectly working alarm system. GITEWS is developed by several scientists and engineers from the Helmholtz Centre Potsdam German Research Centre for Geosciences (GFZ), the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association (AWI), the German Aerospace Center (DLR), the Research Centre in Geesthacht (GKSS), the German Marine Research Consortium (KDM), the Leibniz Institute of Marine Sciences (IFM-GEOMAR), the United Nations University (UNU), the Gesellschaft für Technische Zusammenarbeit (GTZ), and the Federal Institute for Geosciences and Natural Resources (BGR), as well as Indonesian and international partners. The project is financed by the Federal Ministry of Education and Research (BMBF).
The Alfred Wegener Institute for Polar and Marine Research (AWI) conducts research in the Arctic, Antarctic and in oceans of mid and high latitudes. The AWI coordinates polar research in Germany, and provides important infrastructure, such as the research icebreaker Polarstern and stations in the Arctic and Antarctic, for international science organisations. The AWI is one of 15 research centres of the 'Helmholtz-Gemeinschaft' (Helmholtz Association), the largest scientific organisation in Germany.
Margarete Pauls | idw
UT professor develops algorithm to improve online mapping of disaster areas
29.11.2016 | University of Tennessee at Knoxville
New standard helps optical trackers follow moving objects precisely
23.11.2016 | National Institute of Standards and Technology (NIST)
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...
The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.
Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
02.12.2016 | Medical Engineering
02.12.2016 | Agricultural and Forestry Science
02.12.2016 | Physics and Astronomy