Anti-Cyclone, depression, Rain, Cloud +water Cycle

Question 0

Anti-cyclone -weather associated

Answer 0

Clear cloudless skies, light wind and percipation is unlikely.
Summer : its hot and sunny
Winter : low temperatures and frosty nights
- in the norhtern hemisphere winds blow clockwise

Question 1

Anti-cyclone

Answer 1

An air mass with no fronts
Winds blow clockwise
It creates high pressure at the centre as it consist of cold air descending on the earths surface.
Winds blow away from center

Question 2

Relief rain

Does ireland recive relief rain

Answer 2

When an air mass is forced over a mountain range.
Air cools and condenses
Clouds form, the rain falls on the widnward side.
The air left descends on the sheltered sidehas little moisture, condension stops and a rain shadow is formed.
Ireland recieves relief rainfall throughout the year

Question 3

Cyclonic rainfall ( frontal rainfall)

Does ireland recieve frontal rainfall.

Answer 3

When a cold ( polar air) and a warm ( moist tropical) air mass meets at a frontal.
The warm air is lighter so it rises over the cold heavy air.
Warm air then c.c. (cools condenses)
This forms clouds
Eventuall rain falls, it starts light.
Fronts develope over the atlantic ans bring changabke weather to ireland.

Question 4

Convectional rainfall

Answer 4

Solar energy heats the earths surface
Moisture is evapoarted from the earth as the land warmsbthe air above it
The warm air rises and cools and condences
Clouds form
Heavy showers follow

Question 5

Cloud

Stratus

Low alltitude

Appearance

Answer 5

Thick layers
Continuous rain
When its on the ground it is fog

Question 6

Clounds

Cumunus

Medium alittude

Appearance

Answer 6

Fluffy

Appeares in fair weather

Dark in colour and brings rain

Question 7

Clounds

Cirrus

High alittude

Appearance

Answer 7

Wispy in appearance

Made of ice crystals

Appears in fair weather

Question 8

Depression

Symbols

Answer 8

Marked with L for low pressure
Pressure lowest at center
Winds blow anti-clockwise and towards center
Warm front - a line of red semi circles

Cold front - a line of blue triangles

Question 9

What is a front

Answer 9

The boundary area separating two different air masses

Question 10

What is an air mass

Answer 10

A large body of air that has similar moisture, temperature, pressure and humidity

Question 11

4 air mases e.g continental

Answer 11

1) continental :
- winter : cold and dry weather
- summer : hot and dry

2) polar :
- summer / winter : cold and wet weather

3) tropical
- summer / winter : warm and dry

4) maritime
- summer : cold and mild
- winter : warm and mild

Question 12

How a depressions occurs

Answer 12

• A warm air mass meets a cold air mass
• At the warmest point along the warm air mass, the air will start to rise
• there is an are of low pressure underneath
• At this point in the northern hemisphere the air begins to circulate in a anti - clockwise direction
• where the warm air begins to rise the cold air moves to take its place.
• the cold air travels faster as it descends and it starts to chse the warm front, eventually catching up with it
• cold air lifts all warm air off ground

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Question 13

Depression

Weather associated

• cold front
• warm front
• middle

Answer 13

The weather varies at a depression
-cold front : cloudy, temperture decreases, heavy showers + increase in atmospheric pressure

• warm front : cloudy, continous rainfall, wind speed increase, decrease in atmospheric pressure
• middle : some clouds, soem drizzle, increase in temperature