As recent events in Haiti, Chile and Turkey have demonstrated, earthquakes can have devastating effect. Those living in the Asia-Pacific are well aware of this. Lying on the so-called “Ring of Fire”, countries such as Taiwan are at high risk of natural disasters such as earthquakes, volcanoes, floods, and tsunamis. Today researchers at the International Symposium on Grid Computing, ISGC 2010, have gathered to share their experience of mitigating such disasters.
“Earthquake prediction is an unsolved problem. But using data gathered by seismometers we are able to predict ground motion and reduce the damage. Providing access to earthquake data will help the Asia-Pacific to be better prepared when an earthquake strikes - the more information we have, the better.” says Li Zhao from the Institute of Earth Sciences, Academia Sinica, Taipei.
“Our dream is to have an integrated regional data centre for the Asia-Pacific, which is accessible for scientists to study the earth nature.” says Wen-Tzong Liang also of the Institute of Earth Sciences. This could improve scientist's knowledge of earthquakes and the earth's interior, providing information for engineers to design and reinforce buildings appropriately as well as teaching citizens how to respond when an earthquake strikes.
In order for such a network to be successful, data needs to be gathered from countries across the Asia-Pacific, not just those that are prone to earthquakes. The team at Academia Sinica, led by Bor-Shouh Huang, have already started tackling this problem. In the last two years they have set up ten new stations along the Vietnamese coast, and are set to deploy even more in the Philippines.
These seismic stations will produce real-time data continuously for any local data centre to monitor earthquake activity in this region. Giving scientists wider access to the archived data can help them predict what will happen when an earthquake strikes and understand what the earth structure is below the surface.
“We use computers to simulate wave propagation so if there's an earthquake in Taiwan we can determine how much the earth will shake anywhere in the world.” says Li Zhao from the Institute of Earth Sciences, Academia Sinica. “Using archived data records we can investigate the structure inside the earth, and if we know this we can better predict the ground motion. For example Taipei lies in a basin – the ground is covered by a soft sedimentary layer. So if an earthquake happens, Taipei will experience a higher motion than the surrounding area, a process called amplification.”
To set up this network, researchers are hoping grid technologies can provide robust and reliable ways to transmit and store data. They have already turned to grid computing to help analyse the data itself.
“The most important ground motion is in the frequency of a few Hertz, so the higher the frequency the more realistic the prediction is. But doing calculations at very high frequency requires a lot of computing power. Grid technology gives any researcher with an internet connection a way to run simulations for any earthquake they wish to study.” says Zhao. Zhao demonstrated a new gateway which gives scientists easy access to a grid-based simulator at an ISGC 2010 workshop earlier this week.
Scientists shed light on carbon's descent into the deep Earth
19.07.2017 | European Synchrotron Radiation Facility
Thawing permafrost releases old greenhouse gas
19.07.2017 | GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
19.07.2017 | Event News
12.07.2017 | Event News
12.07.2017 | Event News
20.07.2017 | Information Technology
20.07.2017 | Materials Sciences
20.07.2017 | Physics and Astronomy