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Articles on Tides

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The SS “Leecliffe Hall” sailing on the Welland Canal, Ontario, shortly before it sank in the St. Lawrence. (Matt Miner Collection)

Discovering the three largest shipwrecks in the St. Lawrence River

The St. Lawrence is one of the most difficult rivers in the world to navigate. It has been the site of collisions, groundings and shipwrecks. Several thousand wrecks lie beneath its surface.
Exceptional high tides hit eastern Québec in 2010 and 2016. (Groupe Facebook Grandes Marées 2010)

Can scientists predict when the next exceptional high tide will occur along the St. Lawrence River?

Popular belief suggests the highest tides in the St. Lawrence River are reached around the equinoxes. In truth, they arrive close to the solstices.
King tides now regularly breach seawalls meant to protect Torres Strait Island communities, and it happened again last week. Suzanne Long/AAP

King tides and rising seas are predictable, and we’re not doing enough about it

King tides and rising seas are an increasing and predictable threat, but adaptation plans to limit the damage to coastal property are still not managing the political obstacles.
A motorist drives through “nuisance flooding” in Charleston, SC, Oct. 1, 2015. AP Photo/Stephen B. Morton

An X-factor in coastal flooding: Natural climate patterns create hot spots of rapid sea level rise

Climate change is raising global sea levels. Now research shows that ‘hot spots’ where seas rise another 4 to 5 inches in five years can occur along the Atlantic and Gulf coasts, further magnifying floods.
Far from boring. Ben Birchall/PA Wire

Explainer: what are tidal bores?

Surfers and spectators gathered along the Severn Bore in Gloucestershire, England, in recent days to take advantage of the tidal wave that swept upstream. What’s known as a tidal bore – a wave of up to…
How long can you stay there depends on practice and physics. elisfanclub

Moon’s gravity alone cannot create the world’s largest tides

“Tide goes in, tide goes out…you can’t explain that.” So claimed US talkshow anchor Bill O’Reilly, in a baffling attempt to discredit atheism which became something of a YouTube sensation. I have been…

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