getijgolf

A getijgolf, also known as a tidal bore, is a phenomenon where the leading edge of the incoming tide forms a wave (or waves) that travels up a river or narrow bay against the direction of the river or bay's current. This occurs when the tide enters a confined space, and the shape of the estuary or river amplifies the tidal wave. The size and intensity of a getijgolf depend on several factors, including the tidal range (the difference between high and low tide), the shape and depth of the riverbed and banks, and the speed and volume of the river's outgoing flow.

Getijgolven are most commonly observed in specific locations around the world where these conditions are met. Famous examples include the River Severn in England, the River Gironde in France, the Bay of Fundy in Canada, and the Qiantang River in China, which boasts one of the world's largest and most powerful getijgolven. Surfers and boaters sometimes brave these waves, but they can also pose a hazard to navigation due to their unpredictable nature and strong currents. The visual spectacle of a getijgolf is a notable natural event, attracting observers to witness the powerful advance of the tide.