Fogs

Question 1

How are clouds formed?

Answer 1

• When warm air is cooled, it can no longer contain the water vapour. It has absorbed and the water vapour condenses into droplets of water that are visible in forms of cloud.

Question 2

Advection fog

Answer 2

• Forms when warm moist air flows over a colder surface

-Tends to happen in late spring early summer before sea has fully warmed

• As it cools reaches dew point, moisture condenses to form fog

Question 3

Dewpoint

Answer 3

• Is the temperature that an unsaturated parcel of air must fall to before coming saturated and condensation will take place

Question 4

Sea smoke

Answer 4

Colder polar air moving over a warm sea

Question 5

Frontal fog

Answer 5

• Evaporation of warm water into a cold air mass causing rapid saturation and condensation
• occurs when two air masses of different temperature meat

Question 6

Relative humidity

Answer 6

• The amount of moisture in the air, compared to what the air can hold at that temperature

Question 7

Radiation fog

Answer 7

• Occurs during cold clear nights
• Land radiates the heat absorbed during the day
• As land cools at night air becomes saturated when reaches its dewpoint