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Towards understanding the Environmental Consequences of  Marine Renewable Energy Confrontation vs Mitigation EMBS – Edinburgh, 25 th  August 2010 EMBS – Edinburgh, 25 th  August 2010 Dr. Susana Bastón Meira Research associate in the ICIT-  International Centre for Island Technology
Contents ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],EMBS – Edinburgh, 25 th  August 2010
Motivation EMBS – Edinburgh, 25 th  August 2010 ,[object Object],[object Object],[object Object],[object Object]
Motivation EMBS – Edinburgh, 25 th  August 2010 ,[object Object],[object Object],[object Object],[object Object],SRDG  (Strategic Research Development Grant) funded by the Scottish Funding Council WP 5: ENVIRONMENTAL AND ECOLOGICAL IMPACTS www.mreds.co.uk M arine  R enewable  E nergy  D evelopment in  S cotland (MREDS)
Confrontation vs Mitigation EMBS – Edinburgh, 25 th  August 2010 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Confrontation vs Mitigation EMBS – Edinburgh, 25 th  August 2010 Potential negative impacts Species displacement Environmental conditions Colision risks Noise
Confrontation vs Mitigation EMBS – Edinburgh, 25 th  August 2010 How good is the energy resource? How the energy is dissipated? Long term and far-field effects Scale up to arrays
Monitoring techniques EMBS – Edinburgh, 25 th  August 2010 c)  Acoustic Backscatter Systems (ABS): Suspended sediment profiles close to the sea bed Moorings and Buoys ,[object Object],[object Object],b)  Wave buoys:  2D wave spectra at a point
Monitoring techniques EMBS – Edinburgh, 25 th  August 2010 a) Satellite observations Optical wavelengths:  suspended sediment concentrations  Dopplerised SAR imagery:  currents b) High Frequency (HF) Radar:  surface currents and wave spectra Remote sensing a) ROV (Remote Observation Vehicles) b) Gliders ROVs and Floats
Capabilities of numerical models EMBS – Edinburgh, 25 th  August 2010 ,[object Object],[object Object],[object Object],[object Object],[object Object],MRE development Environmental impacts Availability Prediction tool Efficiency Ecological models
SUNTANS model EMBS – Edinburgh, 25 th  August 2010 u, v, w  are Cartesian components of velocity u   is the vector form of velocity q   the non-hydrostatic component of pressure η   is the free surface elevation f  and  b   are the Coriolis terms υ H   and  υ V   are the horizontal and vertical turbulent eddy viscosities ∇ H  the horizontal gradient operator: SUNTANS   is a numerical model designed for the simulation of complex, non-hydrostatic coastal, river and estuarine flows with high resolution on unstructured grids using parallel computers.
SUNTANS model EMBS – Edinburgh, 25 th  August 2010 Resource:  Dr Rob Harris 1 , Dr Karl Stephen 2 , Prof Margot Gerritsen 3 1.- ICIT/HWU, 2.- IPE/HWU, 3.- Stanford University
SUNTANS model EMBS – Edinburgh, 25 th  August 2010 ,[object Object],[object Object],Hydrostatic approximation:  Equilibrium between pressure gradient and gravitational force  SUNTANS is  Non-hydrostatic:  When a fluid is in motion, the vertical pressure gradient is also influenced by the  vertical acceleration and friction      non-hydrostatic pressure effects P = p + q Static pressure  + Dynamic pressure
SUNTANS model EMBS – Edinburgh, 25 th  August 2010
[object Object],[object Object],[object Object],[object Object],Conclusions EMBS – Edinburgh, 25 th  August 2010
Towards understanding the Environmental Consequences of  Marine Renewable Energy Confrontation vs Mitigation EMBS – Edinburgh, 25 th  August 2010 Thanks for your attention! Email: S.Baston@hw.ac.uk http://www.icit.org.uk/

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EMBS 2010 Susana Baston

  • 1. Towards understanding the Environmental Consequences of Marine Renewable Energy Confrontation vs Mitigation EMBS – Edinburgh, 25 th August 2010 EMBS – Edinburgh, 25 th August 2010 Dr. Susana Bastón Meira Research associate in the ICIT- International Centre for Island Technology
  • 2.
  • 3.
  • 4.
  • 5.
  • 6. Confrontation vs Mitigation EMBS – Edinburgh, 25 th August 2010 Potential negative impacts Species displacement Environmental conditions Colision risks Noise
  • 7. Confrontation vs Mitigation EMBS – Edinburgh, 25 th August 2010 How good is the energy resource? How the energy is dissipated? Long term and far-field effects Scale up to arrays
  • 8.
  • 9. Monitoring techniques EMBS – Edinburgh, 25 th August 2010 a) Satellite observations Optical wavelengths: suspended sediment concentrations Dopplerised SAR imagery: currents b) High Frequency (HF) Radar: surface currents and wave spectra Remote sensing a) ROV (Remote Observation Vehicles) b) Gliders ROVs and Floats
  • 10.
  • 11. SUNTANS model EMBS – Edinburgh, 25 th August 2010 u, v, w are Cartesian components of velocity u is the vector form of velocity q the non-hydrostatic component of pressure η is the free surface elevation f and b are the Coriolis terms υ H and υ V are the horizontal and vertical turbulent eddy viscosities ∇ H the horizontal gradient operator: SUNTANS is a numerical model designed for the simulation of complex, non-hydrostatic coastal, river and estuarine flows with high resolution on unstructured grids using parallel computers.
  • 12. SUNTANS model EMBS – Edinburgh, 25 th August 2010 Resource: Dr Rob Harris 1 , Dr Karl Stephen 2 , Prof Margot Gerritsen 3 1.- ICIT/HWU, 2.- IPE/HWU, 3.- Stanford University
  • 13.
  • 14. SUNTANS model EMBS – Edinburgh, 25 th August 2010
  • 15.
  • 16. Towards understanding the Environmental Consequences of Marine Renewable Energy Confrontation vs Mitigation EMBS – Edinburgh, 25 th August 2010 Thanks for your attention! Email: S.Baston@hw.ac.uk http://www.icit.org.uk/