Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Processing seismic waves emanating from the ocean bottom

24.11.2003


Iban Rodríguez Barbarin, a telecommunications engineer from Pamplona, has carried out a study on processing seismic waves emanating from the ocean’s floor. The study is the subject of his graduate thesis, ’Ocean Bottom Seismometers (OBS) processing with refraction seismology’.



The study was carried out within a wider research and development project by investigators at Navarre Public University, jointly with scientists from the Vilanova i la Geltru Centre for Technology, part of the Polytechnic University of Catalonia and the Sea Sciences Institute, which is part of the CSIC.

Acquisition of OBS


The project started a few years ago when the Barcelona-based Sea Sciences Institute acquired devices known as Ocean Bottom Seismometers, the purpose of which was to collect seismic signals from the ocean’s floor. The idea was to introduce into the peninsula submarine refraction seismic techniques, novel at the time in comparison with other seismological techniques, whether land or marine.

Due to rapid technological development, those OBS became obsolete, to which problem was added the considerable loss of the devices underwater. All this pointed to devising an alternative, custom-made technology for OBS.

This is where the project carried out by the Catalan research centres and the Navarre Public University came into play. Specifically, the Navarre research team has worked both on the reception and suitable processing of the signals collected as well as the processing of the information provided by them in order to facilitate their interpretation by seismologists and geologists.

The first steps were to find specific information on land and marine seismological activity in the widest possible manner. Then, the researchers involved themselves in adapting known tools and techniques to the problem, a labour that was developed in the graduate thesis.

In this way, signals were processed which facilitated the Catalan researchers to identify the various layers of the ocean bed, eliminating noise wherever possible.

During the processing phase two types of signals have to be taken into account: passive signals, which are produced naturally, and active ones, which are produced via stimuli. Researchers worked on the latter.

The last part of the project lays out the main conclusions on the various techniques developed: amongst others, signal detection, including OBS itself.


Contact :
Iñaki Casado Redin
Nafarroako Unibertsitate Publikoa
inaki.casado@unavarra.es
(+34) 948 16 97 82

Garazi Andonegi | Basque research
Further information:
http://www.basqueresearch.com
http://www.unavarra.es

More articles from Communications Media:

nachricht New Technologies for A/V Analysis and Search
13.04.2017 | Fraunhofer-Institut für Digitale Medientechnologie IDMT

nachricht On patrol in social networks
25.01.2017 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO

All articles from Communications Media >>>

The most recent press releases about innovation >>>

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

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

NASA's Fermi catches gamma-ray flashes from tropical storms

25.04.2017 | Physics and Astronomy

Researchers invent process to make sustainable rubber, plastics

25.04.2017 | Materials Sciences

Transfecting cells gently – the LZH presents a GNOME prototype at the Labvolution 2017

25.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>