- Dust Clouds
- Gases: Carbon Dioxide 0.03 %
- Water Vapour: from volcanic eruptions
- Oxygen: from photosynhesis 21 %
- Nitrogen: 78 %
- Gases and smoke from industry, cars, heating, etc.
- Exosphere: 700 km
- Thermosphere: 80 km,
-- Ionosphere: 80-550 km. Relects radio and tv waves.
- Mesosphere: 50 km.
- Stratosphere: 12 km. Ozone
- Troposphere: 0 km
- Earth's surface absorbs some solar radiation and heats up.
- The warm surface heats the nearest layers of air.
- Some radiation is reflected and escapes.
- Carbon dioxide and water vapour relects some radiation back to the Earth again.
- The atmosphere stops the surface heat escaping into space.
- Water vapour and carbon dioxide retain heat like the glass in a greenhouse.
1.3.2 Unequal warming
Depends on the latitude
Depends on the inclination of Sun's rays.
- Is the ratio of the weight of the atmosphere to the area over which that weight is distributed.
- Is a quantity
- Unit: Pascal
- Is the amount (volume) of water vapour in a specific amount of air.
- Saturation point
Is the amount of water vapour in 1 m3 of air at a specific moment. Expressed in grams.
Is the relationship, expressed as a percentage, between the present amount of water vapour in a volume of air and that which it could contain if the volume of air were saturated.
- unequal warming
- masses of air with different degrees of humidity
Refers to the main atmospheric phenomena in a specific region that occur every year.
- Depends on latitude
-expressed in term of temperature and rainfall
4 Atmospheric phenomena
Occurs in the troposphere:
Caused by the wind:
- Whirlwinds or dust storms
Related to the water vapour:
Refers to a series of atmosphereic phenomena that occur at a specific moment in a specific place.
- Rain Gauge
- Weather Vane
- Wind Gauge