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VERSION:2.0
PRODID:-//Memento EPFL//
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SUMMARY:Channel adjustment to changes in  sediment supply and flow regimes
DTSTART:20151124T111500
DTEND:20151124T121500
DTSTAMP:20260510T135118Z
UID:df997ddb06e4c55708262c5a20099407568aea31844d696ddfe4cd41
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Marwan Hassan\, The Department of Geography\, The Univ
 ersity of British Columbia\, Canada\nAlthough more than a century has pass
 ed since the development of the DuBoys (1879) sediment transport equation\
 , the fluvial geomorphology/engineering community still lacks an integrate
 d physical understanding of the relations between flow and particle dynami
 cs and bed and stream stability and how they influence river evolution. Pr
 edictions of sediment transport rate via hydraulically based functional re
 lations are often more than an order of magnitude different than measured 
 rates. These discrepancies have been explained by the dynamic nature of be
 d surface structures and armouring\, sediment availability\, and the assum
 ptions that underlie the relations: uniform sediment and unconstrained mov
 ement of sediment\, as well as little consideration for the role of sedime
 nt supply\, storage within the channel\, and sediment mobility. Bed state\
 , sediment supply/storage and flow regime play an important role in regula
 ting sediment transport and channel stability and are hence the focus of t
 he current lecture.\nBio: Professor Marwan Hassan is a geomorphologist who
  has worked extensively throughout the world\, within small and large basi
 ns alike\, including major studies completed for the Yangtze\, Yellow and 
 Mississippi river basins.  His research interests cover broad aspects of 
 the field from basic process-oriented field studies of particle movements 
 and exchange with surficial sediments\, to physical experimentation of bed
 load transport processes\, to in depth reviews of the challenges surroundi
 ng water in the Middle East.  He has pioneered work in particle tracing t
 echnologies\, and more importantly linking insights to sediment transport 
 theory\, and was one of the first to document the significant effect of sp
 awning salmonids on annual bedload sediment budgets\, making clear connect
 ions between biological and physical processes.  He manages a long runnin
 g field research station in the coastal mountains just east of Vancouver\,
  British Columbia and he directs the brand new\, state of the art mountain
  channel experimental laboratory at the University of British Columbia\, c
 onsisting of 8 and 18 meter long flumes\, and a new 12 meter long stream t
 able.  Surprisingly\, Marwan has time for other interests and pursuits\, 
 including fathering three beautiful children\, and a love for history and 
 politics.
LOCATION:GC B1 10 (génie civil) http://plan.epfl.ch/?zoom=20&recenter_y=5
 864230.48622&recenter_x=730964.64871&layerNodes=fonds\,batiments\,labels\,
 information\,parkings_publics\,arrets_metro\,transports_publics&floor=1&q=
 GC_B1%2010
STATUS:CONFIRMED
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