3.3 World: Sometimes too much

• Aardrijkskunde
• Middelbare school
• vwo
• Leerjaar 2

Water

Sometimes too much

Which areas have
too much water?

Learning goals for today:

- You know which areas have greater flood risks.

- You understand why the flood risk of many           areas is increasing.

- You can assess a number of measures to               reduce flood risks.

Risky areas for flooding

1. River and coastal areas

2. Areas close to the foot of a mountain with a rocky surface

3. Areas with tropical storms

4. Areas with deforestation takes place, mainly upstream

5.  Cities

6.  Areas where there is lots of infiltration

Can the Netherlands flood?
How?

Consequences

Floods are happening more frequently

Measures against floods

- Short term

- Long term

Which area would have more chance of getting flooded?

1. Westfriesland
2. New Zealand
3. Cape Town
4. Bangladesh

Short-term measurements:

- Constructing dams, dykes and retention areas

- monitoring the weather in the entire river basin;

- educating and training citizens (for example, evacuation practice etc.);

- safeguarding drinking water and food after flooding.

Long-term measurements:

- making room for the river

- reducing the enhanced greenhouse effect

- making a location policy

What is a peak discharge

1. When ice is flowing through a river
2. In a short time, lots of water is flowing through a river
3. In a short time, not a lot of water is flowing through a river
4. When the river has dried up

Why are there more floods happening nowadays?

1. Because of the greenhouse effect
2. Because the dykes are breaking
3. Because people use too much water
4. Because it is raining more on Earth

Training civilians on how to react to a natural disaster is a...

1. Measure on long term
2. Measure on short term

Start with assignment 1 to 3

If you have questions, ask me or your neighbour.

Learning goals for today:

- You know which areas have greater flood risks.

- You understand why the flood risk of many areas is increasing.

- You can assess a number of measures to reduce flood risks.

Homework:

Do the rest of the assignments from paragraph 3.3