Location - Qiantang River in Hangzhou China.
Jamie Sterling and Reno Makani compete in the first ever Red Bull Qiantang Surfing Shoot Out. We got to explore the Great Wall of China. Learned about the countries biodiversities and it's amazing culture. We ends up making it to the finals and placing second and received a Silver medal woot woot!
Brief educational information about tidal bores-
Bores occur in relatively few locations worldwide, usually in areas with a large tidal range (typically more than 6 metres (20 ft) between high and low water) and where incoming tides are funneled into a shallow, narrowing river or lake via a broad bay. The funnel-like shape not only increases the tidal range, but it can also decrease the duration of the flood tide, down to a point where the flood appears as a sudden increase in the water level. A tidal bore takes place during the flood tide and never during the ebb tide.
A tidal bore may take on various forms, ranging from a single breaking wavefront with a roller – somewhat like a hydraulic jump – to undular bores, comprising a smooth wavefront followed by a train of secondary waves known as whelps. Large bores can be particularly unsafe for shipping but also present opportunities for river surfing like what we did in China during the 2012 Red Bull Qiantang Shoot Out.
Two key features of a tidal bore are the intense turbulence and turbulent mixing generated during the bore propagation, as well as its rumbling noise. The visual observations of tidal bores highlight the turbulent nature of the surging waters. The tidal bore induces a strong turbulent mixing in the estuarine zone, and the effects may be felt along considerable distances. The velocity observations indicate a rapid deceleration of the flow associated with the passage of the bore as well as large velocity fluctuations. A tidal bore creates a powerful roar that combines the sounds caused by the turbulence in the bore front and whelps, entrained air bubbles in the bore roller, sediment erosion beneath the bore front and of the banks, scouring of shoals and bars, and impacts on obstacles. The bore rumble is heard far away because its low frequencies can travel over long distances. The low-frequency sound is a characteristic feature of the advancing roller in which the air bubbles entrapped in the large-scale eddies are acoustically active and play the dominant role in the rumble-sound generation.
The word bore derives through Old English from the Old Norse word bára, meaning "wave" or "swell".
Producer and Editor-In-Chief: Reno Makani http://www.renomakani.com
Managing Editor: Perry Gershkow http://www.coastalcruisin.com
Check out GoPro.com and order yours today!
Take a moment and be one of the first to sign up for exclusive insights, media, VIP events and giveaways at http://www.renomakani.com/vip