Winter/Spring 2012


No seminar

4:00 p.m., Thursday, January 12, 2012


No seminar

4:00 p.m., Thursday, January 19, 2012


No seminar this week

Thursday, January 26, 2012


Assimilation of sea-surface temperature observations during 2004 into an eddy permitting model of the North Atlantic Ocean

Vasily Korabel

Department of Oceanography
Dalhousie University

4:00 p.m., Thursday, February 2, 2012


Mechanisms of water temperature and circulation variability in the Yellow Sea

Youyu Lu

Bedford Institute of Oceanography

4:00 p.m., Thursday, February 9, 2012


Title: TBA

Speaker: TBA

Institute

4:00 p.m., Thursday, February 16, 2012


Title: TBA

Speaker: TBA

Institute

4:00 p.m., Thursday, February 23, 2012


The Influence of St. Lawrence Estuary Discharge on Circulation in the Gulf of St. Lawrence and the Scotian Shelf

Kyoko Ohashi

Department of Oceanography
Dalhousie University

4:00 p.m., Thursday, March 1, 2012


Stress partitioning and the role of vortex shedding in the wave bottom boundary layer

Diane Foster

University of New Hampshire

4:00 p.m., Thursday, March 8, 2012


Composition and fluxes of freshwater through Davis Strait

Kumiko Azetsu-Scott

Bedford Institute of Oceanography

3:00 p.m., Thursday, March 15, 2012


Regime change in the Gulf of Maine

Peter Smith

Bedford Institute of Oceanography

3:00 p.m., Thursday, March 22, 2012


No seminar this week

Thursday, March 29, 2012


Title: TBA

Speaker: TBA

Institute

4:00 p.m., Thursday, April 5, 2012


Title: TBA

Speaker: TBA

Institute

4:00 p.m., Thursday, April 12, 2012


Title: TBA

Speaker: TBA

Institute

4:00 p.m., Thursday, April 19, 2012


Title: TBA

Speaker: TBA

Institute

4:00 p.m., Thursday, April 26, 2012


Experimental and Theoretical Modeling of Internal Tide Generation

Morris Flynn

Department of Mechanical Engineering
University of Alberta

3:30 p.m., Thursday, May 3, 2012

Abstract: Building on recent theoretical advances (i.e. Petrelis et al., J. Phys. Oceanogr., 36, 1053--1071, 2006), we analyze the low-mode structure of internal tides generated in laboratory experiments by a two-dimensional ridge in a channel of finite depth. The height of the ridge is approximately 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 (ROMS) numerical simulations (di Lorenzo et al., J. Phys. Oceanogr., 36, 1072--1084, 2006), most of the linear baroclinic energy flux is associated with the mode 1 tide.

For reasons to be discussed, the interpretation of experimental data is notably more involved when internal waves of various frequencies are present, as is the case with real tides, which represent a superposition of various diurnal (K1, O1) and semidiurnal (M2, S2) components. This in turn complicates the modal analysis when a continuum of frequencies are present e.g. due to internal wave forcing by a gravity current.

This work was jointly conducted with Paula Echeverri (MIT), Tom Peacock (MIT) and Kraig Winters (UCSD-SIO) with additional contributions by Neil Balmforth (UBC) and Alexis Kaminski (U. Alberta).

Nano-bio: Morris R. Flynn is an assistant professor of mechanical engineering at the Univ. of Alberta. He completed a Ph.D. under the supervision of Drs. Colm P. Caulfield 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 environmental and biological fluid mechanics, the natural ventilation of buildings and the continuum modeling of traffic flow.


SPECIAL SEMINAR

Measuring and Predicting Long Term Sea Level Changes

Philip Woodworth

University of Liverpool and
Proudman Oceanographic Laboratory, UK

3:00 p.m., Monday, May 7, 2012


Particles in Motion: Pathways in the Coastal Ocean

David Greenberg

Bedford Institute of Oceanography

3:00 p.m., Thursday, May 10, 2012

Abstract: Dan Lynch (Dartmouth College NH) has invited me and Ata Bilgili (Istanbul Technical University) to co-author a book with him having the above title. It is aimed at summarizing Lagrangian techniques for near-shore applications. It is well beyond my normal expertise. This talk will describe some of the underlying math and some of the particle tracking applications we plan on covering in the book. The primary focus will be on the education of the speaker.


Title: TBA

Speaker: TBA

Institute

4:00 p.m., Thursday, May 17, 2012