Tsunami

As for the tsunami (solid-mindedness British: bore), the tide wave which is in the river mouth is a perpendicular wall and a phenomenon that it is and flows backward in a river. I am called the tidal bore (do a tsunami). Until the early days of the Showa era, the tsunami caused by the earthquake was called a tsunami, too. Because I take shape structure called step wave (だんぱ) [¹] out of a wave pattern, the destructive power at the front of the wave is big.

It is said to be "the estuary where the river mouth is large" that this phenomenon is caused at the shore, and the occurring representative river is the Brazilian Amazon (it is said in this with Pororoca in particular), the Pakistani Indus, Chinese 銭塘江, the British Severn.

Table of contents

Tsunami of the Amazon

The details refer to Pororoca

Tsunami of 銭塘江

Tsunami of 銭塘江

The tsunami of 銭塘江 is called "銭塘江潮". It is "钱 塘江大潮" in Chinese, and "sea 啸" of current Chinese points at a tsunami exclusively. On August 19, it occurs every year at the age of a night with a full moon in the old calendar. Therefore there is a tradition to visit while eating moon cake in Hangzhou from ancient times. As for this phenomenon, a thing and there where there is the river mouth of 銭塘江 into a trumpet form are dotted with Funayama Islands, and it is thought that complicating a tide, the speed of the tide to flow more from Taiwan Strait in the East China Sea appear for a thing becoming strong as the width of the straits gets narrow.

Surfing

State of the surfing in the Severn (the U.K.)

Because the danger is big although I am popular for a surfer, out of a thrill to ride out a countercurrent to become the perpendicular wall, an occurring city rarely recommends it proactively. I assume only view tourist attractions, and surfing in itself becomes the form to consent tacitly to basically. The French Garonne is famous.

Reference

1. ^ new word current events glossary of terms]

Allied item

• Feeling tide river

Outside link

• In Odawara University tsunami 1902, I collect engineering works precious photograph

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