Silver Dragon Tidal BoreWhen a river broadens into an open area or an estuary as it enters the ocean
Silver Dragon Tidal BoreWhen a river broadens into an open area or an estuary as it enters the ocean, it creates the setup for a tidal bore. A tidal bore is a wave on a river driven by the tides: as the tide comes in on an appropriately shaped river, the energy of the tide can be compressed into a gradually more confined area. Eventually, the tidal energy can be focused into a small wave or series of waves that actually run upriver, against the current. Areas with large tides can produce similar waves that run the opposite direction as the tide goes out, where they will even interact with the next incoming tide. The largest tidal bore in the world is the Silver Dragon Tidal Bore on the Qiantang River in China. The tidal wave on that river can be over 3 meters high and is even surfable; for the last several years during the strongest full moon during the year an actual surfing contest has been held on the wave as it runs upriver through the middle of downtown Hangzhou.-JBBImage credit: Gwydion M Williamshttps://flic.kr/p/6MC4TKReferences:http://n.pr/1WRuTlOhttp://www.worldscibooks.com/engineering/8035.html -- source link
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