Les 6 - §3.3 Too much water

• Aardrijkskunde
• Middelbare school
• vwo
• Leerjaar 3

Planning

§3.3 Water: sometimes too much

• Effects of flooding (5 mins)
• Video about floods  (15 mins)
• Measures (10 mins)
• Homework (15 mins)

Key words §3.3

Hurricane (Orkaan):A tropical storm with windspeeds over 200 km per hour.

Peak discharge (Piekafvoer): The max amount of water going trough a river after a rainstorm. If a flood happens this is the moment.

Soil subsidence (bodemdaling): Sinking of the ground.

Learning goals

• Je weet welke gebieden grotere overstromingsrisico’s kennen.
• Je begrijpt waarom het overstromingsrisico van veel gebieden toeneemt.
• Je kunt een aantal korte- en lange termijn maatregelen noemen om overstromingsrisico’s te verkleinen. 

Houd jij het droog?

Ga naar Overstroomik.nl

Voer je postcode in

Ik blijf waarschijnlijk droog

Ja

Nee

Effects of flooding

• Direct effects
• Indirect effects

Effects of flooding

• Direct effects
• Indirect effects

Loss of electricity

Loss of water from the tap

No more infrastructure

No more new food in the supermarket

What can we do about floods?

I mean they are getting more frequent, so there must be something we can do, right?

• Short term solutions
• Long term solutions

What can we do about floods?

Measures against flooding

Short-term:

• constructing dykes, dams and retention basins;
• monitoring the weather in the entire river basin;
• educating and training citizens (for example, evacuation practice etc.);
• safeguarding drinking water and food after flooding.

Short-term:

constructing dykes, dams and retention basins

Short-term:

monitoring the weather in the entire river basin

Short-term:

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

Go up the hill dummies

Short-term:

safeguarding drinking water and food after flooding.

Measures against flooding

Long-term:

• making room for the river: no longer locking up the river between dykes but giving back the flood plains to the river (also upstream);
• reducing the enhanced greenhouse effect: this will help prevent the sea level rising and extreme weather;
• making a location policy, where people are moved or banned from risk areas as much as possible.

Long term

Making room for the river: no longer locking up the river between dykes but giving back the flood plains to the river (also upstream)

Long term

Reducing the enhanced greenhouse effect: this will help prevent the sea level rising and extreme weather

Long term

making a location policy, where people are moved or banned from risk areas as much as possible.

I told you: "you were not supposed to build your house there!"

Time for homework

Assignment 4, and 6 of §3.3