Tide window

Time18:00 Day2

Water level-

Rising-

Next high-

Next low-

Today's range-

Moon-

Causeway open

Boat

Draught1.2 m

Time18:00

Water needed over the bar-

Water now-

Bar now-

Bar open

Valid

Area	Wind	Sea (Hs)	Weather	Vis	Warning

Scene windauto

Challenge: read the bulletin and decide

Years ahead10 y

Storm windB6

Rock-

Rock strength F_r (model)-

Wave load F_w-

Toe wet f_wet-

Retreat rate dx/dt-

Retreat in 10 y-

Why does it retreat?

Fictional bays, tide constants and sea areas — a learning model, NOT FOR NAVIGATION. Never cross a real causeway or beach using a game tide table.

Coastal England Explorer

Loading the bay: terrain, cliffs, harbour, boats.

scenecliffsharbourboats

WebGL is not available

This simulation needs WebGL 2 for the 3D coast. You can still read the science summary and the tide equations below. A 2D companion with the tide curve is planned.

h(t) = Z0 + sum A_i cos(w_i t - g_i); M2 12.4206 h, S2 12.0000 h, N2 12.6583 h, K1 23.9345 h, O1 25.8193 hSprings-neaps period = 1/(1/12 - 1/12.4206) = 354.4 h = 14.77 days

Fictional tide constants, not for navigation.