How do rivers (such as the Thames in London) have tides?

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The River Thames in London is a tidal river, it’s not the only one in the world, but it’s the only one I know of. How does a river which surely has a constant supply of water flowing into it have a tide?

In: Earth Science

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Anonymous 0 Comments

The whole river isn’t tidal, but the estuary is. Estuaries are where the fresh water meets the sea. The tides in the river are caused by the sea, not by the river itself.

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