Talk:Tidal range

Scope of Article
I think that this topic is where the concepts of one and two high(and low) tides per day should be introduced as well as the concepts of mean high water, mean higher high water, etc. A better diagram would show that there is a mean high and low tide, and also discuss minus tides. Perhaps that is covered in a different topic, but it seems appropriate here. Chuck Hawley (talk) 00:32, 13 September 2012 (UTC)


 * This article says very little that isn't already in Tide, which covers the topic of range (actually, several different ranges because of the daily, monthly and other cycles) much better. I am wondering if we shouldn't simply merge and redirect this article there rather than waste effort on this poorly-constructed (and poorly cited) fragment. Chiswick Chap (talk) 12:15, 12 September 2013 (UTC)

The Tide article is extensive (and complex). This standalone article, though it needs work, is a real help to readers who are just looking for a quick estimate of tidal ranges. Even the "ranges" section of the main article is complex. And, near the top of that main article, it links here for this simpler and specific information. I was wondering about Earth tides, if anyone knew of their range, and if that could be added to this Tidal range article. Earth tides gives a maximum of 22 inches at the equator, and I assume the minimum would be about zero at the poles. But if an editor is aware of some published land tide range information, that might be great to include here. Bob Enyart, Denver KGOV radio host (talk) 15:44, 19 March 2019 (UTC)

Information discrepancy
The Bay of Fundy article has the following information about the Bay's vertical tidal ranges, said (in the article) to be drawn from the Guinness Book of Records:

'''“The Natural World, Greatest Tides: The greatest tides in the world occur in the Bay of Fundy.... Burntcoat Head in the Minas Basin, Nova Scotia, has the greatest mean spring range with 14.5 metres (47.5 feet) and an extreme range of 16.3 metres (53.5 feet).”'''

Compare this with the info in this article.Joel Russ (talk) 22:30, 23 March 2014 (UTC)

Tidal Map Error
the image of a tidal map appears to be measuring in centimeters (cm) with a maximum tidal range of 130 cm which is a ridiculously low tidal range. It might be meant to be in decimeters. Regardless, a better, more accurate tidal map should be used. — Preceding unsigned comment added by 68.32.78.11 (talk) 03:00, 5 May 2022 (UTC)

Contradiction in "Geography" section
At time of writing the section contains:

"The world's largest tidal range of 11.7 metres (38.4 feet) occurs in Bay of Fundy, Canada,[failed verification] a similar range is experienced at Ungava Bay also in Canada and the United Kingdom regularly experiences tidal ranges up to 15 metres (49 feet) between England and Wales in the Bristol Channel."

The "world's largest tidal range" by definition cannot be 3.3 metres less than the one mentioned later in the very same paragraph! The Bay of Fundy article itself gives that place a tidal range of 16 metres. If someone with the requisite knowledge could sort this out, that would be grand. 81.146.39.36 (talk) 15:05, 13 September 2023 (UTC)


 * Vale of Glamorgan coast Had tide of over 13m this week (march 2024). 80.6.132.137 (talk) 23:19, 22 March 2024 (UTC)
 * It was a difference btw mean ranges and extreme ranges. I have sorted it out. Nurg (talk) 02:15, 16 June 2024 (UTC)