Saturday, April 4, 2009

The atmosphere — clouds

Clouds

Clouds significantly affect how nature balances the energy of the atmosphere around the Earth. This energy distribution helps determine how weather systems move and develop around the globe. Therefore, for accurate predictions of both weather and climate, clouds must be well represented in our computer models.

To understand clouds and how precipitation (rain, snow and hail) forms within them we use both observed evidence and theories.

A lot of evidence is gained from the specialised aircraft FAAM (Facility for Airborne Atmospheric Measurement) BAe 146. This plane has instruments for measuring the number, size and chemical composition of aerosol particles, cloud droplets and ice crystals within clouds.

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