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SUMMARY:Experiments ad theory for anomalous waves induced by abrupt depth 
 changes - Nick Moore (Florida State University)
DTSTART:20191107T160000Z
DTEND:20191107T170000Z
UID:TALK134446@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:I will discuss both laboratory experiments and a newly develop
 ed theory for randomized surface waves propagating over variable bathymetr
 y. The experiments show that an abrupt depth change can qualitatively alte
 r wave statistics\, transforming an initially Gaussian wave field into a h
 ighly skewed one. In our experiments\, the probability of a rogue wave can
  increase by a factor of 50 compared to what would be expected from normal
  statistics. I will discuss a theoretical framework based on dynamical and
  statistical analysis of the truncated KdV equations. This theory accurate
 ly captures many key features of the experiments\, such as the skewed outg
 oing wave distributions and the associated excitation of higher frequencie
 s in the spectrum.<br><br><br><br><br>
LOCATION:Seminar Room 2\, Newton Institute
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