The Four Seasons

2 Pages 497 Words

Evidence for Seasons
A discussion of weather would not be complete without mentioning seasons: Winter, Spring, Summer and Fall, often distinguished by variations in temperature, daylight, proximity of the sun. The angle of the sun also comes into play here. The longer the day, as in summer the more intense the solar radiation. The sun is high in the sky and most concentrated, resulting in warm temperatures. The greater the angle of the sun rays, the less intense the rays and the shorter the duration resulting in cooler days associated with winter and fall.
Energy sources that drive the Atmosphere
The source of energy that drives the atmosphere is solar energy and our planet magnetic fields. The atmosphere absorbs the energy from the sun, recycles water and other chemicals and works with the electrical magnetic forces to provide a moderate climate. The atmosphere also protects us from high energy, radiation and the frigid vacuum of space. It also deflects and filters the energy waves.


Pressure, Fronts and Humidity
Atmosphere pressure is defined as the force exerted by the weight of air. The pressure in the atmosphere is simply the weight of the air. Fronts are defined as the transition zone between two air masses of different density. There are five types of fronts, stationary fronts, cold fronts, warm fronts, occluded front and dry lines. Dry lines separates moist air mass from dry air masses. The moisture content of the atmosphere is an element of climate called humidity. Humidity is the mass of water vapor in the air.
The Origin, Structure and Characteristics of the Atmosphere
The atmosphere is defined as the gaseous portion of the planet. More basic, air combined with gases and suspended tiny solid and liquid particles, nitrogen, oxygen, water vapor etc. More specific, the three components of the atmosphere are water vapor, which the source of all clouds, precipitation and latent heat. Aerosols are the tiny solid a...