Low Inflow Estuaries (LIEs) Hypersaline, Inverse & Thermal Estuaries

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Presentation transcript:

Low Inflow Estuaries (LIEs) Hypersaline, Inverse & Thermal Estuaries Stommel Transitions

Largier’s Notes

How and when does the system reverse? (Hearn and Sidhu, 2003) How and when does the system reverse? Hypersaline but not Inverse Depends on the Density gradient

Salt-plug estuary E ~ R M. Tomczak’s Web Site

Largier’s Notes

Largier’s Notes

Hyposaline but not classical… Largier’s Notes Hyposaline but not classical…

Largier’s Notes

Largier’s Notes

Largier’s Notes

Largier’s Notes

Largier’s Notes

Guaymas Bay Inverse Estuary Classical Estuary IN OUT OUT OUT IN Valle-Levinson et al., 2001

Water and Soil Quality (?) Mean Flow – Transect 4 Neap Tides Interface slope, spring tides ~ 2.5e-03 (25 m in 10 km) Interface slope, neap tides ~ 2.0e-03 (18 m in 9 km) Distance from Transect Origin (km) Wet Period: Classical Dry period: Inverse OUT IN IN OUT Importance: Water and Soil Quality (?) Climate Variability Another view of the exchange at the mouth– looking seaward; Inflow at 10-15 cm/s; outflow at 5 cm/s Valle-Levinson and Bosley, 2003

Largier’s Notes Stommel Transitions

Salt and Heat Conservation Q Freshwater Precipitation Flux out Flux in Se, Te So, To Heating CLASSICAL Q Freshwater Evaporation Flux out Flux in Se, Te So, To Cooling INVERSE Relative influence of temperature and salinity on density gradients