1 / 18

Multiple States in Coastal Lagoons and Estuaries Next Steps Toward Understanding the Lagoons of the Yaqui Valley

Multiple States in Coastal Lagoons and Estuaries Next Steps Toward Understanding the Lagoons of the Yaqui Valley. Arnoldo Valle-Levinson S. Monismith Juan Delgado Esther Cruz Bob Chant Ctr. for Coastal Physical Oceanogr. Stanford University ITMAR Guaymas CECARENA Rutgers

stacy
Download Presentation

Multiple States in Coastal Lagoons and Estuaries Next Steps Toward Understanding the Lagoons of the Yaqui Valley

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Multiple States in Coastal Lagoons and Estuaries Next Steps Toward Understanding the Lagoons of the Yaqui Valley Arnoldo Valle-Levinson S. Monismith Juan Delgado Esther Cruz Bob Chant Ctr. for Coastal Physical Oceanogr. Stanford University ITMAR Guaymas CECARENA Rutgers Ocean, Earth and Atmos. Sci. Dept. Guaymas University Old Dominion University New Brunswick Norfolk, Virginia N.J.

  2. Depends on density contrast (From Hearn and Sidhu, 2003) When and how does the system switch?

  3. IN Guaymas Bay OUT Inverse Estuary OUT OUT IN Classical Estuary Looking into the lagoon Red = outflow Blue = inflow

  4. Wet Season: Classical Dry Season: Inverse Neap Tides Distance from Transect Origin (km) Mean Flow at Transect 4 red is inflow; blue is outflow (looking seaward) Interface slope, spring tides ~ 2.5e-03 (25 m in 10 km) Interface slope, neap tides ~ 2.0e-03 (18 m in 9 km) IN OUT IN OUT Importance: Water and Soil(?) Quality Climate Variability

  5. The Global Heat and Salt Conveyor Belt (From Broecker,1990; in Pinet, 1998)

  6. Heating Precipitation Freshwater Se, Te Outflow Q So, To Inflow Cooling Evaporation Freshwater So, To Inflow Se, Te Q Outflow INVERSE Conservation of Salt and Heat CLASSICAL Relative influence of salinity and temperature on density gradients

  7. In reality: Relative influence of salinity and temperature on density gradients Temperature influence Net influence Salinity influence Q

  8. Multiple states --- Stommel Transitions T mode Temperature influence Net influence S mode Salinity influence Q

  9. Response dominated by temperature Response dominated by salinity

  10. Critical response for multiple states Temperature influence Net influence Salinity influence Q Guess for Tobari and Lobos

  11. (Indicates Evaporation) (From Hearn and Sidhu, 2003)

  12. (Indicates Evaporation) (From Hearn and Sidhu, 2003)

  13. (From Hearn and Sidhu, 2003)

  14. (From Hearn and Sidhu, 2003)

  15. L = 15 km L = 0.85*15 km (Indicates Evaporation) (From Hearn and Sidhu, 2003)

  16. Shortening basin may prevent it from becoming INVERSE (From Hearn and Sidhu, 2003)

  17. Tobari’s causeway

  18. Do Yaqui Valleylagoons/estuaries show ‘Stommel Transitions’? What is the time scale of the Transitions? Does causeway prevent INVERSE conditions? Are the systems in the Yaqui Valley more VULNERABLE to drought? Implications for water and soil quality… Natural laboratory to examine climate variations

More Related