In many Florida inlets, what tidal movement cycle helps improve water quality by diluting inland-driven plumes?
Answer
The tide moving from a low or incoming stage to a high outgoing stage.
Understanding the relationship between tide cycles and contamination clearance is key to interpreting water safety locally, especially in areas near river mouths or urban drainage points. When the tide moves out, transitioning from a low or incoming state towards a high outgoing stage, this movement effectively pushes water away from the source of inland contamination. This outward flow provides significant dilution, effectively sweeping away the plume of contaminated water that often accumulates near outfalls when the tide is low or just beginning to rise.
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