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"King tides are the highest tides." Well yes but it's really not the point and it creates confusion with a second effect. King tides are those tidal events with the greatest vertical range between high and low and therefore the highest high tides and the lowest low tides of the year. From the point of view of humans who live by the sea, the highest tides are of course the most concerning because they can cause flooding while low tides may cause only a longer walk to the water's edge and some channels may become unnavigable. This also becomes confusing when, as in (say) Venice, the Florida Keys and some low-lying island nations, climate change is also contributing to dangerously higher water levels. This does not increase tidal range but does increase the height of the water at all points in the tidal cycle - so high tides are higher with increased flooding but low tides are not lower. We also need to take out all the generalized summer/winter references. The entry needs a rewrite and I haven't the time just now. Cross Reference ( talk) 14:29, 25 November 2019 (UTC)
Unfortunately the article says nothing about the reason for these especially high tides. There is that link to Perigean spring tide, and it seems to me that this may have exactly the same reason. If this is indeed case the articles should be merged. Also, concerning the summer season, there should be mention of an "apogean spring tide" -- BjKa ( talk) 09:35, 8 December 2010 (UTC)
Surely the perihelion aspect is clear: maximum solar effect when closest to the sun around early January (whether that means summer or winter or neither, depending on where you are South, North, or Equatorial) while the lunar effect will not have any tidy seasonal pattern because a year is not an integer multiple of the moon's period. Thus, not only would spring tides (due to the sun-moon-earth alignment) not be tied to the early January timing, so also would be the variation in the earth-moon distance not be tied to early January. In other words, there are three factors: earth-moon-sun alignment, earth-sun distance, and earth-moon distance and the "kingliness" aspect depends on their concordance. However, at a given place the actual tides (their height and timing) are due to the large-scale oscillations in ocean basins and their phases may well not match the astronomical phases. NickyMcLean ( talk) 06:38, 12 June 2016 (UTC)
This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||||||||||||||||||
|
"King tides are the highest tides." Well yes but it's really not the point and it creates confusion with a second effect. King tides are those tidal events with the greatest vertical range between high and low and therefore the highest high tides and the lowest low tides of the year. From the point of view of humans who live by the sea, the highest tides are of course the most concerning because they can cause flooding while low tides may cause only a longer walk to the water's edge and some channels may become unnavigable. This also becomes confusing when, as in (say) Venice, the Florida Keys and some low-lying island nations, climate change is also contributing to dangerously higher water levels. This does not increase tidal range but does increase the height of the water at all points in the tidal cycle - so high tides are higher with increased flooding but low tides are not lower. We also need to take out all the generalized summer/winter references. The entry needs a rewrite and I haven't the time just now. Cross Reference ( talk) 14:29, 25 November 2019 (UTC)
Unfortunately the article says nothing about the reason for these especially high tides. There is that link to Perigean spring tide, and it seems to me that this may have exactly the same reason. If this is indeed case the articles should be merged. Also, concerning the summer season, there should be mention of an "apogean spring tide" -- BjKa ( talk) 09:35, 8 December 2010 (UTC)
Surely the perihelion aspect is clear: maximum solar effect when closest to the sun around early January (whether that means summer or winter or neither, depending on where you are South, North, or Equatorial) while the lunar effect will not have any tidy seasonal pattern because a year is not an integer multiple of the moon's period. Thus, not only would spring tides (due to the sun-moon-earth alignment) not be tied to the early January timing, so also would be the variation in the earth-moon distance not be tied to early January. In other words, there are three factors: earth-moon-sun alignment, earth-sun distance, and earth-moon distance and the "kingliness" aspect depends on their concordance. However, at a given place the actual tides (their height and timing) are due to the large-scale oscillations in ocean basins and their phases may well not match the astronomical phases. NickyMcLean ( talk) 06:38, 12 June 2016 (UTC)