5 Written questions
5 Matching questions
- Ebb Current
- Wave Frequency
- Tidal Datum
- a Maximum ratio of wave height to wavelength seen in the open ocean. Also known as wave steepness.
- b Water rushing out of an enclosed harbor or bay because of the fall in sea level as a tide trough approaches.
- c Eddies do not tend to form in these boundary currents.
- d The reference level (0.0) from which tidal height is measured.
- e Number of waves passing a fixed point per second.
5 Multiple choice questions
- Waves with ___________ wavelengths move the fastest.
- Uninterupted distance over which the wind blows without significant change in direction.
- A high, often breaking wave generated by a tide crest that advances rapidly up an estuary or river.
- These waves have a wavelength greater than 1.73cm. The restoring force is gravity and momentum. Wind waves are one example of these waves.
- A "no-tide" point in an ocean caused by basin resonances, friction, and other factors around which tide crests rotate. About a dozen amphidromic points exist in the world ocean. Sometimes called a node.
5 True/False questions
Semidiurnal → This type of tidal cycle is found commonly in the Gulf of Mexico.
Transverse → The West Wind Drift is an example of this type of boundary current.
Constructive interference → The subtraction of wave energy as waves meet producing smaller waves.
Neap → Waves with ___________ wavelengths move the fastest.
Clockwise → Low water position corresponding to a tidal trough