Feeds

'Super rogue wave' scuppers Lego pirate

Australian experiment shows how giant waves emerge

New hybrid storage solutions

Video (.mov) Pity the poor Lego pirate in the video below: there he is, placidly riding over tiny waves, when a rogue wave arrives and upends his vessel.

The video looks trivial, but it has a serious implication: the ANU scientists that put it together did so as part of the world’s ongoing effort to understand rogue waves that menace shipping and arrive without warning.

The ANU team, working with colleagues from Hamburg University of Technology and the University of Turin, demonstrated that a particular condition known as a “Peregrine soliton” can arise in apparently calm seas, causing a “super rogue wave” much larger (relative to the ambient conditions) than has previously been measured.

Peregrine solitons were first proposed in the early 1980s by a mathematician, Howell Peregrine of the University of Bristol, and first observed in optics. The wave undergoes a compression, increasing its amplitude (as you can see in the video).

Over to the ANU’s statement: “The large amplification of the rogue wave peak above the normal waves around it suggests the existence of a new class of waves – the so-called ‘super rogue waves’,” explains Professor Nail Akhmediev of the ANU’s Research School of Physics and Engineering.

“Our results show that, even in a sea characterised by small waves, rogue waves can naturally develop due to the nonlinear dynamics of the surface elevation. This is an extraordinary fact that could explain some mysterious observations of rogue waves in calm sea states.” ®

Video source: Physical Review - original here. ®

Providing a secure and efficient Helpdesk

More from The Register

next story
Boffins: Behold the SILICON CHEAPNESS of our tiny, radio-signal-munching IoT sensor
Single ant-sized Stanford chip combines radio, 'puter, antenna
Thought that last dinosaur was BIG? This one's bloody ENORMOUS
Weighed several adult elephants, contend boffins
TROUT and EELS in SINISTER PACT to RULE the oceans
Slimy chums form deadly alliance to sweep seas
Drones swarm over bearded Brit billionaire's island getaway
Just to take lovely pictures though, after Richard Branson invests in 3D Robotics
Chelyabinsk-sized SURPRISE asteroid to skim Earth, satnav birds
Space rock appears out of nowhere, buzzes planet on Sunday
California blue whale numbers soar to historical levels, say boffins
Still far too many of them being struck by US ships, mind
City hidden beneath England's Stonehenge had HUMAN ABATTOIR. And a pub
Boozed-up ancients drank beer before tearing corpses apart
'Duck face' selfie in SPAAAACE: Rosetta's snap with bird comet
Probe prepares to make first landing on fast-moving rock
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.