March 18, 2003
Surfing the Severn: tidal bores
From the BBC:
Thursday 20th March sees the first of this year’s large Severn Bores -- a spectacular natural phenomenon which attracts sightseers and surfers from near and far. . .Cool. But this is what I want to see:The bore exists in the Severn because the estuary is just the right shape for funnelling the incoming tides of the Bristol Channel. . .
When conditions are favourable. . . the surge of water is sufficient to form a wave as much as two metres high, with a speed of 14 knots.
The biggest bore in the world is to be found in Hangzhou Bay south of Shanghai. The characteristic narrowing, increasingly shallow Bay and large tidal range combine to produce a bore that on the highest tides, can attain a height of over seven metres and a speed of up to 15 knots. It is said that the roar of the advancing bore can be heard at a distance of more than 20 kilometres.Yeah, but it is rideable?
Posted by David on March 18, 2003 8:36 PM
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