C1 Nigeria - Lesson 2: Global wind system

• Aardrijkskunde
• Middelbare school
• vwo
• Leerjaar 3

NIGERIA

rich but still poor

C1: Global wind systems

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What is the plan for today?

SHORT REPEAT: Köppen climate system

TODAY: Global windsystem + Monsoon

KÖPPEN GOALS

1. You can name the 4 natural landscapes in Nigeria from north to south (W3).
   
2. You can describe the vegetation of the natural landscapes in Nigeria (W3, GG 96, 97, 98).
   
3. For any climate graph you can give the correct Köppen letters (GG 63, 64 + step by step plan).
   

ANSWER             

KÖPPEN

CLIMATE
SYSTEM

In order from the equator to the poles

A - B - C/D - E

A: Aw, savannah

B: BS, steppe

  C: Af, tropical rainforest

A dry period in the winter?

Discuss homework

3 + 6

TODAYS GOALS

1. You can explain how and why the tropical low and the subtropical highs shift (GG 56 + notes).
   
2. You can explain why monsoons occur (GG 56 + notes).
   
3. You can give 2 reasons for the fact that Nigeria has a wet period in summer (GG 56 + notes).
   

To be able to understand today’s goals,

you should also know this: 

1. You can explain in 3 steps why there is precipitation in low pressure areas (G55).
   
2. You can explain in 3 steps why it’s dry in high pressure areas (G55).
   
3. With the use of Buys Ballot’s law you can draw the correct wind direction between 2 pressure areas anywhere in the world (G55 + Notes).
   
4. You can give the name and location of the 7 permanent pressure areas in the world (G54).
   
5. You can give the name and location of the 6 permanent wind systems in the world (G55).
   

http://windy.com/

To be able to understand today’s goals, you should also know this: 

1. You can explain in 3 steps why there is precipitation in low pressure areas (G55).
   
2. You can explain in 3 steps why it’s dry in high pressure areas (G55).
   
3. With the use of Buys Ballot’s law you can draw the correct wind direction between 2 pressure areas anywhere in the world (G55 + Notes).
   
4. You can give the name and location of the 7 permanent pressure areas in the world (G54).
   
5. You can give the name and location of the 6 permanent wind systems in the world (G55).
   

DRAW THE GLOBAL WIND SYSTEM BY USING G54 AND G55

THE BUYS 

BALLOT LAW

1. Air always flows from high pressure (maximum) to low pressure (minimum) over the earth’s surface.
   
2. Wind does not flow in a straight line from H to L, but deflects towards the right on the northern hemisphere and the left on the southern hemisphere.
   

GLOBAL

WIND

SYSTEM

Location of Nigeria

SUMMER & WINTER 

USE G54/G55

For the situation in April and October draw:

The location of Nigeria

The position of the sun

The position of the tropical low

The position of the subtropical highs

The direction of the trade winds

OPEN G56

For the situation in July draw:

The location of Nigeria

The Tropic of Capricorn

The position of the sun

The position of the tropical low

The position of the subtropical highs

The direction of the winds between the pressure area

Point out which wind is the monsoon

OPEN G56

For the situation in January draw:

The location of Nigeria

The Tropic of Capricorn

The position of the sun

The position of the tropical low

The position of the subtropical highs

The direction of the winds between the pressure area

Point out which wind is the monsoon

Questions

1. Use GG 56 and your notes. Give 2 reasons for the fact that Nigeria has a wet period in summer.

2. Use step B. What is the wind direction of the monsoon in Nigeria?

3. Use your notes and the atlas. What is the wind direction of the monsoon in Tanzania?

4. Use the general physical map of Africa in the atlas. Explain in 2 steps why Abuja (capital of Nigeria) has even more precipitation in July than most other places in Nigeria.

5. Look at figure 1 and use your atlas. Explain why Libreville has 2 wet seasons.

The rest of the lesson

• Use G54, G55 and G56
  
• Finish the monsoons assingments in Classroom

Rules while working:

• You're allowed to work together with your neighbor.

This is your homework for the next lesson!

THE NIGERIAN DREAM