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UID:20250901T125408EDT-506504N2ze@132.216.98.100
DTSTAMP:20250901T165408Z
DESCRIPTION:Dr. Brian Arbic joins us from the department of Earth and Envir
 onmental Sciences from the University of Michigan for his seminar titled T
 he internal gravity wave spectrum:  A new frontier for global ocean models
 . Refreshments will be served.\n\n\nAbstract\n\nIn recent years increased 
 computing power has allowed large supercomputing centers to run global oce
 an general circulation models at horizontal resolutions of 1/12th degrees 
 or even higher (the current record is 1/48th degrees).  At these resolutio
 ns\, if in addition tidal forcing is included alongside atmospheric forcin
 g\, an internal gravity wave spectrum begins to develop.  We show that the
  horizontal wavenumber-frequency spectrum fills out along predicted linear
  dispersion curves\, and we show that it fills out more completely as hori
 zontal resolution is increased.  The nonlinear spectral transfers of kinet
 ic energy also fill out along the dispersion curves\, and increase in vigo
 r with an increase in horizontal resolution.  Finally\, the comparison of 
 modeled internal gravity wave frequency spectra with moored observations i
 mproves with increasing horizontal resolution.  We discuss the implication
 s of this work for understanding mixing in the ocean.\n
DTSTART:20151109T203000Z
DTEND:20151109T213000Z
LOCATION:Room 934\, Burnside Hall\, CA\, QC\, Montreal\, H3A 0B9\, 805 rue 
 Sherbrooke Ouest
SUMMARY:Seminar: Dr. Brian Arbic\, University of Michigan
URL:/meteo/channels/event/seminar-dr-brian-arbic-unive
 rsity-michigan-256537
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