Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Rogue Wave Detection

Giant waves, also known as monster waves, have been talked about by sailors for centuries, often related to unexplained disappearances at sea, but no one quite believed them.

They have been considered merely a myth until recently, when new studies using technological developments like buoys, radars and satellites have scientifically proven the existence of rouge waves, and that they exist in much higher numbers than it was ever expected.

These rogue waves could be the cause of tragic accidents at sea, not only because of their immense power and heights that reach over 30 meters, but it is their unpredictable nature that poses a bigger threat; they emerge as unexpected mighty walls of water towering from calm seas.

This is why Jose Carlos Nieto, a researcher from the Universidad de Alcalá, Madrid in collaboration with the German research centre GKSS have developed a software tool that can detect these waves and monitor their evolution in time and space. There are currently other methods of detection, like wave rider buoys to measure the height of waves at sea, but the information they provide is not as complete since buoys only measure the waves at a single point at sea, thus lacking the spatial dimension. This software detects the wave front from a radar image and is now being commercialised by a spin-off company of the GKSS.

The image of the sea that forms on a radar screen is the result of different mechanisms of interaction between the electromagnetic energy emitted by the radar and the sea surface. The detection of the reflected energy from the wave by the system does not depend so much on the wave’s height, but on other factors such as the wind and wave inclination. The tool developed by Professor Nieto from the signal theory department of the Universidad de Alcalá translates the radar image into a measurement of the elevation of the waves. The software uses a mathematical model to evaluate and process by different mechanisms the radar image that is generated and another model to determine the spatial and temporal dimensions of the waves.

The image on the left corresponds to the raw radar image, while the one on the right is the image once processed by the software. Thanks to the colour code it can be appreciated that higher waves propagate as a group. This effect is called wave grouping and has a great relevance for the safety of marine structures such as ships, dikes, platforms. The software can be used to provide warning of an approaching extreme wave, giving time to prepare and minimise its effects. The accurate wave dynamics that the software provides could also be used to predict the precise trajectory of oil spills and other contaminants that float on the sea, and it is on this application that most of the current investigation is being carried out at the Universidad de Alcalá by Professor Nieto, member of the High frequency technology group, among other specialists like physicists and telecommunications engineers from the signal theory department of the UAH.

Oficina de Información Científic | alfa
Further information:

More articles from Earth Sciences:

nachricht Receding glaciers in Bolivia leave communities at risk
20.10.2016 | European Geosciences Union

nachricht UM researchers study vast carbon residue of ocean life
19.10.2016 | University of Miami Rosenstiel School of Marine & Atmospheric Science

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Resolving the mystery of preeclampsia

21.10.2016 | Health and Medicine

Stanford researchers create new special-purpose computer that may someday save us billions

21.10.2016 | Information Technology

From ancient fossils to future cars

21.10.2016 | Materials Sciences

More VideoLinks >>>