A rare flood was observed on Sunday on the Qiantang River, a major river in east China’s Zhejiang Province. The event filmed is breathtaking.
The Qiantang River flows for more than 500 kilometers through Zhejiang Province, passing through the provincial capital Hangzhou before flowing into the East China Sea via Hangzhou Bay south of Shanghai.
Screenshot | Portal
The river is known for having the longest breaking wave in the world, locally called the Silver Dragon. Tides generally peak between the 15th and 18th days of the eighth lunar month.
The flood is very rare as it usually only lasts about twelve minutes, Portal reports.
“The fish-scale tide is a very beautiful type of tidal current discovered and named by the Qiantang River Bore Research Institute in 2021. “It is a single-line tidal wave in the shape of fish scales, which is quite spectacular and beautiful,” said Zhou Feiwu, secretary general of the Qiantang River Tidal Bore Research Institute.
Screenshot | Portal
A cross tide occurs when two tides meet and form different patterns such as a cross, a V, or a T.
Flooding is common in the Jianshan section of the Qiantang River in Haining City, Zhejiang.
Screenshot | Portal
“As a tide advances, its shape changes due to the angle at which the two tides meet and the different forces of the tides. We detected a double V-shaped cross flood earlier this year, which is very unusual,” the researcher adds.
Screenshot | Portal
In addition to the fish scale tide and the cross tide, the collision tide, which occurs when two tides collide head-on, can also be seen here.