Weather and Climate Weather is the condition of the atmosphere at any given time or place Climate is the weather conditions in an area averaged over along.
Published byModified over 4 years ago
Presentation on theme: "Weather and Climate Weather is the condition of the atmosphere at any given time or place Climate is the weather conditions in an area averaged over along."— Presentation transcript:
1 Weather and ClimateWeather is the condition of the atmosphere at any given time or placeClimate is the weather conditions in an area averaged over along period of time.
2 Greenhouse EffectThe Sun’s energy is transferred into heat energy by the Earth’s surface. The heat energy is trapped by the atmosphere an reradiated back to Earth keeping it warm.
4 Global Energy Exchange The Equator region receives more direct sunlight therefore more heat energy and the region is hotPolar regions receives less direct sunlight therefore less heat energy and the region is coldWind Currents and Ocean Currents brings hot air to polar regions and cold air to tropical regions.Earth is always trying to stay in balance
5 Air PressureAir Pressure is the measurement of the force exerted by airAir pressure creates the winds and ocean currentsUnequal heating of the Earth’s surface causes air pressure differences
6 Convection CurrentsUnequal heating of the atmosphere causes convection currents.When air becomes warmer it expands and becomes lighter and rises. Creating a low pressure which is unstable conditions.Cold air is more dense and heavy and tends to sink. Creating high pressure which is stable conditions.
8 4 Major Pressure Zones 1. Equatorial Low Pressure Zone 2. Subtropical High Pressure Zone3. Subpolar Low Pressure Zone4. Polar High Pressure Zone
9 Global Wind BeltsTrade Winds: blow from subtropical high to the equatorial low pressure. Northeast in Northern Hemisphere, Southeast in Southern HemisphereDoldrums located along the equator no wind.Westerlies: Prevailing winds blows mainly from the West. Found in the Mid-Lattitudes.
10 Global Wind BeltsPolar Easterlies: Blow from the east coming from the northern or southern polar regions.Where the polar easterlies meet the westerlies fronts are created.A weather front is when two air masses of different temperature and moisture meet.
15 Weather Systems Weather moves from west to east High pressure system cool stable airLow pressure system warm unstable airLow pressure system has fronts.Warm front leading edgeCold front trailing edgeAlong fronts is where storms take place