Tides Flashcards
what is tidal range?
the difference in height between the tides
when does tidal range tend to be the largest?
in channels such as river estuaries
when do the highest high tide and the Lowest low tides occur?
when the sun and the moon are in alignment, so their gravitational forces work with each other
what kind of tide is it when the sun and moon are in alignment - so gravitational forces work with each other?
spring tide
when do the lowest high tide and the highest low tides occur?
when the sun and the moon are perpendicular to each other - so their gravitational forces work against each other
what kind of tide is when the sun and the moon are perpendicular to each other - sp their gravitational forces work against each other?
neap tide
neap tide creates what?
the smallest possible tidal range
the spring tide creates what?
the largest possible tidal range