miguel canals silander, phd · tres palmas. tidal vortices adcirc model by j. gonzalez, caricoos....
TRANSCRIPT
![Page 1: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/1.jpg)
The hydrodynamics of the Tres Palmas Marine Reserve, Rincón, PR
Miguel Canals Silander, PhDFluid Mechanics and Coastal Hydrodynamics
Laboratory, UPRM
![Page 2: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/2.jpg)
Objective• Understand basic hydrodynamics of TPMR and surrounding regions. Important for– Larval connectivity
– Sediment transport and erosion (see next talk by K. Scott)
– Wave‐coral interactions and asexual reproduction of A. Palmata
![Page 3: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/3.jpg)
![Page 4: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/4.jpg)
Physical setting
![Page 5: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/5.jpg)
Wave‐structure interaction: A. Palmata
• Structural failure occurs when wave‐induced bending moment > tensile strength
• Fragmentation part of asexual reproduction
• Damage shown above due to March 2008 swell event
![Page 6: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/6.jpg)
Tidal currents: March‐April 2010
![Page 7: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/7.jpg)
Transport Rose: March‐April 2010
• Mean northerly flow
• Velocities as large as to 2 knots
• Data obtained by CariCOOS personnel
• Low correlation between current direction and tidal phase
Tres Palmas
![Page 8: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/8.jpg)
Tidal Vortices
ADCIRC model by J. Gonzalez, CariCOOS
![Page 9: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/9.jpg)
Numerical simulations
Picture by M. Scharer
![Page 10: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/10.jpg)
![Page 11: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/11.jpg)
Wave‐induced currents
• Mean wave‐induced currents overlaid on USGS DOQ imagery of Rincon
• Note the very strong alongshore jet and the recirculation region near the marina.
![Page 12: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/12.jpg)
Surf‐zone turbulence in the A. Palmata zone
• There is evidence of coherent vortices in the surf zone at TPMR
• These vortices may accelerate the mixing of larvae and biogenic material
![Page 13: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/13.jpg)
Origin of Bajo Blanco ‐ speculation
• Strong alongshore jet loses momentum as it goes into stagnant region
• Wave‐induced entrained sediment may settle into Bajo Blanco
![Page 14: Miguel Canals Silander, PhD · Tres Palmas. Tidal Vortices ADCIRC model by J. Gonzalez, CariCOOS. Numerical simulations Picture by M. Scharer. Wave‐induced](https://reader034.vdocuments.net/reader034/viewer/2022042807/5f7b5733ec288f3c63530a18/html5/thumbnails/14.jpg)
Acknowledgements
• INGE 5996 students
• Current data and modeling software courtesy of Caribbean Coastal Ocean Observing System
• Junta de Manejo ‐ Tres Palmas