Question 2001Navigation General70% to pass
Mean high water is the average height of _______________.
AI Explanation
The correct answer is B) all high waters.
Mean high water is defined as the average height of all the high waters over a 19-year period. This is the standard reference plane used for navigation charts and other marine applications. The mean high water level represents the average of all the high tide heights, not just the lower or higher high tides.
The other answer choices are incorrect because they do not accurately describe what mean high water represents. Option A refers only to the lower of the two daily tides, while options C and D refer to just the lower or higher high waters, respectively, rather than the average of all high waters.
Related Questions
#1999 What does the term "tide" refer to? #2000 Mean low water is the average height of _______________.#2002 The average height of the surface of the sea for all stages of the tide over a 19 year period is called _______________.#2003 The diurnal inequality of the tides is caused by _______________.#2004 A tide is called diurnal when _______________.