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SUMMARY:Experimental and Theoretical Modeling of Internal Tide Generation 
 - Morris R. Flynn\, Ph.D.\, P.Eng.\, Assistant Professor\, Dept. of Mechan
 ical Engineering\, Univ. of Alberta
DTSTART:20110428T103000Z
DTEND:20110428T113000Z
UID:TALK30501@talks.cam.ac.uk
CONTACT:Helen Mawdsley
DESCRIPTION:Building on recent theoretical advances (i.e. Petrelis et al.\
 , J. Phys. Oceanogr.\, 36\, 1053--1071\, 2006)\, we analyze the low-mode s
 tructure of internal tides generated in laboratory experiments by a two-di
 mensional ridge in a channel of finite depth. The height of the ridge is a
 pproximately half of the channel depth and the regimes considered span sub
 - to supercritical topography. When the tidal excursion is small\, of the 
 order of 1% of the topographic width\, our results agree well with linear 
 theory. For this topographic configuration\, and consistent\, for example\
 , with the predictions of complementary Regional Ocean Modeling System (RO
 MS) numerical simulations (di Lorenzo et al.\, J. Phys. Oceanogr.\, 36\, 1
 072--1084\, 2006)\, most of the linear baroclinic energy flux is associate
 d with the mode 1 tide. \n\nFor reasons to be discussed\, the interpretati
 on of experimental data is notably more involved when internal waves of va
 rious frequencies are present\, as is the case with real tides\, which rep
 resent a superposition of various diurnal (K1\, O1) and semidiurnal (M2\, 
 S2) components. This in turn complicates the modal analysis when a continu
 um of frequencies are present e.g. due to internal wave forcing by a gravi
 ty current. \n \nThis work was jointly conducted with Paula Echeverri (MIT
 )\, Tom Peacock (MIT) and Kraig Winters (UCSD-SIO) with additional contrib
 utions by Neil Balmforth (UBC) and Alexis Kaminski (U. Alberta).\n\n*Morri
 s R. Flynn completed a Ph.D. under the supervision of Drs. Colm P. Caulfie
 ld and Paul F. Linden at the Univ. of California -- San Diego in 2006 and 
 subsequently worked as an instructor/researcher at the Massachusetts Inst.
  of Technology in 2007 and 2008. Morris's research interests include envir
 onmental and biological fluid mechanics\, the natural ventilation of build
 ings and the continuum modeling of traffic flow.*
LOCATION:Open Plan Area\, BP Institute\, Madingley Rise CB3 0EZ
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