Prsentation PowerPoint

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PNEC LITTORAL ATLANTIQUE (06/2004 -
06/2008) Functioning of Atlantic tidal lagoons

• Coordination
• Guy Bachelet (CNRS, Univ. Bordeaux 1) Pierre
  Richard (CNRS, CRELA)
• Steering committee
• Anschutz P., Jouanneau J.-M., Sautour B.,
  Sottolichio A. Univ. Bordeaux 1
• Brenon I., Niquil N. Univ. La Rochelle
• Plus M. Ifremer Arcachon
• Robert S. CRELA
• the two coordinators
• Objectives
• Develop a unified approach for the study of
  Atlantic coastal zones, based on a inter-site
  comparison.
• What are the physical biogeochemical processes
  that drives these coastal systems functioning ?
• What are the interactions between these systems
  and their frontiers (watersheds open ocean)
  ?

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Sites
Marennes Olérons 200 km2 5 m (mean depth)
50 intertidal areas
Arcachon 180 km2 4 m (mean depth) 70 intertidal
areas
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(No Transcript)
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Task 1 Hydrodynamic functioning characteristics

• One common tool Mars-2D

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Task 1 Hydrodynamic functioning characteristics
Maximum current fields
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Task 1 Hydrodynamic functioning characteristics
Maximum current fields
Residual fluxes
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Task 1 Hydrodynamic functioning characteristics
Maximum current fields
Residual fluxes
Tidal prism
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Task 1 Hydrodynamic functioning characteristics
Flushing time
Maximum current fields
Residual fluxes
Tidal prism
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Task 1 Hydrodynamic functioning characteristics
Flushing time
Maximum current fields
Residual fluxes
Tidal prism
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Task 1 Hydrodynamic functioning characteristics
Flushing time
Maximum current fields
Decrease of a conservative constituent
Residual fluxes
Tidal prism
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Task 1 Hydrodynamic functioning characteristics
Flushing time
Maximum current fields
Decrease of a conservative constituent
Residual fluxes
Age
Tidal prism