Lesson 5 - Tides Flashcards
Net force acting on a Fluid object?
Tide Generating Force (TGF)
TGF Equation
Mass of Tide Raising Body/ distance to tide raising body^3
What latitude can you find diurnal tides?
High
What latitudes can you find mixed tides?
Middle
What latitudes can you find semi-diurnal tides?
Low
What is a diurnal tide?
Where there is 1 HW and 1 LW per day
What is a mixed tide?
Where there is 2 HW and LW at different height
What is a semi-diurnal tide?
Where there is 2 HW and 2 LW tides at same heights
What causes spring-neap tides?
The overlap between solar and lunar tides
How often does the spring-neap cycle occur?
Fortnightly
What happens in a spring tide?
The sun and moon align so the tidal range increases
What happens in a neap tide?
Tidal range decreases as sun and moon form 90 degree angle
When drawing tidal maps how do you link areas of similar tidal phase?
Cotidal lines
When drawing tidal maps how do you link areas with similar tidal ranges?
Corange lines
What is the centre of a nodal point called?
Amphidromic Point
