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Biography
Professor Greg Lawrence grew up in Perth Western Australia and obtained his BE degree in Civil Engineering from the University of Western Australia (1977) and his MS and PhD degrees from the University of California at Berkeley (1981, 85).  He joined the Department of Civil Engineering at the University of British Columbia in 1987 where he is now co-director of the Master of Engineering Leadership in Integrated Water Management.  Dr. Lawrence is particularly interested in the fate of discharges into lakes and rivers; the instability and mixing of density stratified shear flows; two-layer hydraulics; and the physical limnology of reservoirs, lakes, tailings ponds and water-filler mine pits.  Dr. Lawrence has also collaborated with cosmologists on the analogy between open channel hydraulics and the physics of black holes.  He has served on the Board of Governors of the University of British Columbia and the editorial boards of the Journal of Hydraulic Engineering and the Canadian Journal of Civil Engineering.  Dr. is a Fellow of the Canadian Academy of Engineering and the Canadian Society for Civil Engineering.  His awards include the Hans Albert Einstein Memorial Prize, the Lorenz G. Straub award and the Camille Dagenais award.
 
Discharges into lakes and rivers: decades of dabbling in diffuser design
 
This talk will use several examples to illustrate some of the challenges of minimizing, and sometimes maximizing, the impact of discharges into lakes and rivers.  The impacts of confining geometry, density stratification and ice-cover will be discussed.  The appropriate level of design, and design effort, for low-discharge systems in the context of environmental regulations will be explored.