Processing seismic waves emanating from the ocean bottom

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

Media Contact

Garazi Andonegi Basque research

Alle Nachrichten aus der Kategorie: Communications Media

Engineering and research-driven innovations in the field of communications are addressed here, in addition to business developments in the field of media-wide communications.

innovations-report offers informative reports and articles related to interactive media, media management, digital television, E-business, online advertising and information and communications technologies.

Zurück zur Startseite

Kommentare (0)

Schreib Kommentar

Neueste Beiträge

Scientists achieve higher precision weak force measurement between protons, neutrons

Through a one-of-a-kind experiment at the Department of Energy’s Oak Ridge National Laboratory, nuclear physicists have precisely measured the weak interaction between protons and neutrons. The result quantifies the weak…

High-performance single-atom catalysts for high-temperature fuel cells

Individual Pt atoms participate in catalytic reaction to faciitate the electrode process by up to 10 times. Single-atom Pt catalysts are stable at 700 degrees Celsius and expected to stimulate…

New method allows precise gene control by light

A novel optical switch makes it possible to precisely control the lifespan of genetic “copies”. These are used by the cell as building instructions for the production of proteins. The…

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close