How do tides work, HW and LW?

[OceanSprint]

The 2 lumps of water with the earth spinning below them creates 2 OCEAN tides each day. For the uk continental shelf, these 2 tides occur along the shelf edge. These in turn drive the co-oscilating tides of our shelf waters with the sea on the continental shelf oscillating like a guitar string, with nodes (places with small tidal range) and antinodes (places with large tidal range) trouble is the guitar string us actually a 2d sheet. Coriollis is then involved in placing the nodes and antinodes.

 

[lpdsn]

Are you seriously suggesting that discussion here helps explain things!

+1

At Uni it was a standard first year question to work out the tides assuming the Earth was a uniformly water covered sphere. They were surprisingly small. IIRC, about 0.5m for the effect of the moon and 0.25m from the sun. The calculation should be in pretty much any textbook of Mechanics (mine's in a box in the spare bedroom, maybe, otherwise I'd try to scan it and post it).

Bowditch (American Practical Navigator) explains the effect of oscillation in the oceanic basins and the generation of diurnal and semi-diurnal tides. The OP can find Bowditch pretty easily on the web. It's copyright US Gubbermint so is freely available to all.

 

[Rum Run]

Dover is 200 miles up the channel.

Somewhere near the ileum

 

[marklucas]

Is there a good site to explain how tides work?

I understand the sun / moon pull, 2 humps of water and spring / neaps.

What I don't understand is when it is HW Falmouth, 200 miles up the coast, Dover, it is low water. What happens to the 2 humps of water that get pulled around the planet as Earth rotates?

If you want a full and correct explanation, then here it is: http://www.ybw.com/forums/showthread.php?277581-Spring-Tide-bulges&p=3006883#post3006883

Obviously I wouldn't trust anything this chap says.

 

[OceanSprint]

This explains ocean tides. Not the co-oscilating tides on the contonentaL shelf.

 

[marklucas]

This explains ocean tides. Not the co-oscilating tides on the contonentaL shelf.

Which is dependent up on the local geogrpahy / bathymetry so unless a specific site is mentioned .... It does however explain the original poster's query on Dover vs. Falmouth.

This provides some explanation of co-oscillating tides: http://gyre.umeoce.maine.edu/physicalocean/Tomczak/IntroOc/lecture11.html

 

[AuntyRinum]

Are you seriously suggesting that discussion here helps explain things!

I would think not, and would suggest that the OP, and anyone else who ventures onto the sea but doesn't understand tides, gets themselves along to an RYA approved evening class as soon as possible to learn all about them. Don't die of ignorance.

 

[cliffdale]

I would think not, and would suggest that the OP, and anyone else who ventures onto the sea but doesn't understand tides, gets themselves along to an RYA approved evening class as soon as possible to learn all about them. Don't die of ignorance.

Bit cheeky.

My opening question says....
I understand the sun / moon pull, 2 humps of water and spring / neaps.
Read more at http://www.ybw.com/forums/showthread.php?429228-How-do-tides-work-HW-and-LW#UkMSVk1yb9GyL1qb.99

The Amphidromic Points answers the question very well given by Hydrozoan post 12 is the kind of information I am looking for.
http://moocs.southampton.ac.uk/oceans/2014/11/09/amphidromic-points-tidal-spiders-in-a-real-world/

http://gyre.umeoce.maine.edu/physicalocean/Tomczak/IntroOc/notes/figures/fig11a5.html

So hopefully, I wont die of ignorance.

 

[AuntyRinum]

Apologies if not appropriate. For anyone with little or no understanding of tides, my suggestion still holds good.