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nat 5 - geography - the definitive guide > Weather > Flashcards

Weather Flashcards

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1
Q

What are the four factors that affect weather?

A

Latitude, relief, aspect, distance from the sea

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2
Q

How does latitude affect weather?

A
  • Places closer to the equator are usually warmer
  • Places nearer to the poles are colder
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3
Q

How does relief affect weather?

A
  • Places located on flat, low lying land are warmer
  • Places higher up, are colder and wetter
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4
Q

How does aspect affect weather?

A

Places which are south facing are warmer, places north facing are colder

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5
Q

How does distance from the sea affect weather?

A
  • Places nearer to the sea are mild and wet
  • Places further from the sea are drier, but temperatures are more extreme
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6
Q

What is an air mass?

A

Is a large volume of air which travels from one area to another

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7
Q

Name the 5 air masses affecting the UK

A
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8
Q

What is the source and characteristics of Tropical Maritime?

A
  • Atlantic Ocean
  • Warm and Wet
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9
Q

What is the source and characteristics of Tropical Continental?

A
  • Southern Europe & North Africa
  • Warm and Dry
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10
Q

What is the source and characteristics of Polar Maritime?

A
  • North Atlantic
  • Cold and Wet
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11
Q

What is the source and characteristics of Polar Continental?

A
  • Northern Europe
  • Cold and Dry
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12
Q

What is the source and characteristics of Arctic Maritime?

A
  • Arctic Ocean
  • Very cold, not always wet due to low humidity
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13
Q

Identify the low pressure area on the chart

A
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14
Q

What do close together isobars denote?

A

Strong winds

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15
Q

Identify the high pressure area on the chart

A
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16
Q

Identify the cold front on the chart

A
17
Q

Identify the warm front on the chart

A
18
Q

What does a large line and a small line on a wind speed symbol denote?

A

10 knots and 5 knots

19
Q

What does this symbol denote in terms of wind speed and direction?

A

North Eastern wind 25 knots

20
Q

How much cloud coverage does this symbol indicate?

A

5 Oktas

21
Q

What kind of weather could you expect at a cold front?

A
  • Towering cumulonimbus clouds
  • Heavy rain showers
  • Drop in temperature
22
Q

What kind of weather could you expect at a warm front?

A
  • Spell of prolonged rain
  • Rise in temperature
23
Q

What kind of weather would you expect at an occulted front?

A
  • Blustery winds
  • Heavy squally rainshowers
  • Sometimes hail and thunderstorms
24
Q

What is a depression?

A
  • An area of low pressure
  • Moves from west to east in the northern hemisphere
25
Q

What are the characteristics of a low pressure system on a synoptic chart?

A
  • cold fronts
  • warm fronts
  • occluded fronts
  • tight packed isobars
  • isobars with pressure decreasing to the centre
26
Q

What is an occluded front?

A

A warm air mass caught between two cold air masses

27
Q

What are three characteristics of a depression?

A
  • Winds blow anticlockwise
  • Wet - where warm air is pushed where it cools, condenses and precipitates
  • Warmer behind a warm front & colder behind a cold front

nat 5 - geography - the definitive guide (1 decks)

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