Charts Flashcards
1
Q
What is the horizontal datum used on US charts? (Also called horizontal geodetic datum, or horizontal control datum)
A
NAD 83 / WGS 83
USCP p. 5
2
Q
Unless otherwise stated, vertical clearances are in feet above ________.
A
Mean high water
USCP p.1
3
Q
Define “controlling depth.”
A
The least known depth of a channel
USCP p.2
