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SUMMARY:Formative Upper-Flow Regimes for Bedforms in Submarine Environment
 s
DTSTART:20150417T151500
DTEND:20150417T161500
DTSTAMP:20260406T194438Z
UID:8fed69176f98251aa1b5baa4626c435ce59098f48fe3e164535f16d5
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Svetlana Kostic\, Computational Science Research Center
 \, San Diego State University\, USA\nOur knowledge on submarine upper-flo
 w regime bedforms\, which are quite common on the ocean floor of Earth\, i
 s very limited. There is as yet no complete phase diagram that can be used
  to quantify their formative flow regimes and characteristics. I will disc
 uss how physically-based numerical modeling in combination with the field 
 information can be used to: a) examine the hydrodynamic response of a bed 
 consisting of fine-grained sediment waves to a wide span of turbidity curr
 ent conditions\; b) demonstrate that fine-grained sediment waves in variou
 s submarine environments most likely form and evolve as upper-flow regime 
 bedforms\, i.e.\, cyclic steps\, transitional bedforms between cyclic step
 s and antidunes\, or antidunes\; and c) provide a basis for the first comp
 lete phase diagram of deep-sea bedforms.  I will also discuss how our kno
 wledge on submarine upper-flow regime bedforms on Earth can be used to tes
 t the Mars ocean hypothesis.
LOCATION:GC C2 413 (génie civil) http://plan.epfl.ch/?lang=en&zoom=20&rec
 enter_y=5864230.07668&recenter_x=730928.07922&layerNodes=fonds\,batiments\
 ,labels\,information\,parkings_publics\,arrets_metro\,transports_publics&f
 loor=2&q=gc_c2%204
STATUS:CONFIRMED
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