King tide

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A king tide is an exceptionally high spring tide, generally referring to perigean spring tides occurring around the time of perihelion. While "king tide" is not a scientific term nor typically used in a scientific context, whenever it is referenced in such contexts it is frequently clarified that it refers specifically to such perihelial perigean spring tides. The expression originated in Australia in 2009 , to describe especially high tides that occur a few times per year. It is now used in North America as well, particularly in low-lying South Florida, where king tides can cause tidal flooding. In Vancouver, Canada, king tides are a growing problem along its seawall.

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