10.3.1. Types of Tides

Try these first

1. 1.

   What is a high tide?

   Hint

   Think about when the water is at its peak level.

2. 2.

   When do spring tides occur?

   Hint

   Consider when the sun, moon, and Earth align.

3. 3.

   What do spring tides result in?

   • Higher high tides and lower low tides
   • Stable tidal levels
   • Lower high tides and higher low tides

   Hint

   Relate this to the lunar cycle.

4. 4.

   True or False: Neap tides occur when the moon is in its first or third quarter phase.

   • True
   • False

   Hint

   Think about how the positions affect tide strength.

5. 5.

   Explain how a hydrographic survey conducted during spring tides may differ from one conducted during neap tides in terms of measurements and data interpretation.

   Hint

   Consider the extremes of tidal measures at full moon vs quarter phases.

6. 6.

   Design a data collection plan for a hydrographic survey taking into account diurnal and semi-diurnal tidal patterns. What considerations would you include?

   Hint

   Think about timing and how often the survey will need adjustments.