Russian River Estuary - Water Quality Monitoring · John Largier . Fabián Bombardelli . Matt...
Transcript of Russian River Estuary - Water Quality Monitoring · John Largier . Fabián Bombardelli . Matt...
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John Largier Fabián Bombardelli Matt Robart Dane Behrens Matt Brennan Michelle Orr Bob Battalio
UC Davis, Bodega Marine Laboratory
ESA PWA
Russian River Estuary - Water Quality Monitoring
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What happens inside estuary during closure?
Influences of stratification and mixing
River inflow
tidal stirring
Tidal inflow
Inlet Closed
Inlet Open
River inflow
Strong mixing from tides and riverflow
Little or no mixing caused by winds and weak riverflow
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Field Study
Water quality profilers
Currents
Salinity, temperature probes
Boat-based monitoring
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Field Study
Plan View
Side View
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Estuary Salinity
Open Inlet • colder, saltier near mouth • warmer, fresher upstream • strong mixing
fresh brackish salty
Closed Inlet • mixing in fresh layer • less mixing in lower salty layer
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What happens at similar estuaries?
Navarro R.
Gualala R.
Russian R.
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Gualala River
• Closes every year in late spring/ early summer
• 30 mi. northwest of Russian R.
• Closed seasonally
fresh brackish salty
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Navarro River
• Closes every year in late spring/ early summer
• 60 mi. northwest of Russian R.
• Closed seasonally
fresh brackish salty