3.1 The Weather V3 pt 2

• Aardrijkskunde
• Middelbare school
• vwo
• Leerjaar 3

The Weather

Precipitation

Wind
Buys Ballot
Homework

What is precipitation? + Give two examples.

Precipitation

There a two types of precipitation:

solid (e.g. hail and snow)

and

fluid (e.g. rain, fog).

Water cycle

Ocean

Precipitation

Evaporation

Condensation

Precipitation

Three important processes that make precipitation possible:

- Evaporation

- Transpiration

- Condensation

Precipitation always needs rising air!

Precipitation can only occur when air rises!

When air rises it gets colder, cold air can't hold as much water vapour then warm air so precipitation.

When air falls it gets warmer, so less precipitation

Wind

Wind is the movement of air through the atmosphere.

In the forecast they mention wind speed (in Beaufort) and wind direction.

Wind always is named after the direction it came from, in the Netherlands that's mainly western wind.

Buys Ballot

Important law of Buys Ballot

1. Wind always moves from high pressure areas to low pressure areas (Atmospheric pressure);

2. Wind is deflected the right in the Northern Hemisphere and to left in the Southern.

You need your:
WB p80-82
LB p66-67

Make:
7 to 9 + 12 

2a + 4 to 6