Chapter 8: Tides

2. A tide with two unequal high waters and two unequal low waters each day.
4. Tides with a vertical tidal range between two and four meters.
6. The vertical difference separating the water level between successive high and low tides; it is equivalent to the height of a wave.
9. The landward-directed flow of water associated with the rise of the tide.
10. Tides having a range greater than 4m.
11. Contour lines on an amphidromic map that join all points where high tide occurs at the same time of the day.
12. The periodic rise and fall of the Earth's water surface as a consequence of the gravitational attraction of the Moon and the Sun.
14. A tide characterized by two equal high waters and two equal low waters during a lunar day.
17. A steep wave that moves upriver during the flooding tide.
19. The minimum range of tide in an area; it occurs when the moon is in its first and third quarters.

1. Tides having a vertical range less than 2 meters.
3. A steep wave that moves upriver during the flooding tide.
5. The occurrence of one high and one low tide during one lunar day.
7. The pattern described by tidal currents in the open ocean whereby the current flow shifts direction by 360 degrees during one complete tidal period.
8. Contour lines on an amphidromic map connecting points having an equal tidal range.
13. A channel or opening through a barrier island that admits the tidal flow of water.
14. The maximum range of tide in an area; occurs twice a month when the moon is new or full.
15. The elapsed time between successive high tides or low tides.
16. Water flow directed seaward as the tide drops.
18. The elevated part of a river bank or tidal channel that is produced by rapid deposition of sediment along the channel edges during flooding. These also occur along the side channels in the lower reaches of a submarine canyon.