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3-25 - Estuaries 3-25 I What's an estuary o Interface...

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Estuaries 3-25 I. What’s an estuary? o Interface between freshwater and saltwater II. Coastal Plain Estuary o Ems River Estuary in Germany o Rising sea level from the ice age III. Tectonic estuary o Sea reinvades land that has subsided IV.Semienclosed estuary o Lagoon Sandbar forming offshore, form barrier islands, area behind turns into an estuary V. Rise and Fall of Fjords o Carved by glaciers o Rock left behind is the Terminal moraine VI.All about the salt! o Positive estuary Salt is diluted as you go into the estuary Fairly decent input of freshwater and slow evaporation Salt wedge Top has the lowest Bottom has the highest o Neutral Estuary
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Complete mixing or evap rate equal to the inflow gives well mixed salinity throughout o Negative Estuary Evaporite Estuary River Little or no flow Lots of evaporation o Removes water leaves the salt VII. Physical determinants of estuaries o Coriolis o Evaporation VIII. Water, water everywhere o Osmosis IX.Physical determinants of estuaries
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  • Spring '08
  • Staff
  • estuary, brackish water, Plain Estuary o Ems River Estuary, o Negative Estuary Evaporite Estuary River, Estuary Evaporite Estuary

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