Presentation on theme: "Climate Factors. WEATHER, by definition, is the CURRENT state or condition of the atmosphere at a GIVEN TIME and place.Climate CLIMATE, on the other hand,"— Presentation transcript:
WEATHER, by definition, is the CURRENT state or condition of the atmosphere at a GIVEN TIME and place.Climate CLIMATE, on the other hand, describes the AVERAGE weather conditions that could be expected during a CERTAIN TIME of year at a specific place. Climate is much less specific than a weather forecast…
TEMPERATUREPRECIPITATION Climate is determined by two major factors
CLIMATE FACTORS 1. Latitude - Low latitudes near tropics (Equator) are warmer. - High latitudes near poles are colder. 2. Prevailing Winds - Prevailing winds push air masses West to East across the country. - Winds blowing from the ocean bring moisture. Example: Seattle, Washington is very rainy. 3. Mountains Ranges - Mountains make air rise. - Rising air creates precipitation.
NEXTNEXT 5. Ocean Currents - Warm water current cause warm temperatures - Cold water current cause cold temperatures 4. Distance to large bodies of water - Areas near water have smaller changes in temperature. Example: LA, California does not get very warm in the summer or very cold in the winter.
Polar Temperate Polar Temperate Tropical 1. Latitude Polar From 60-90 degrees longitude. Cold climate. Temperate From 23-60 degrees longitude. No extremes. In between temperature Tropics From 0-23 degrees longitude. Very warm temperatures.
2. Prevailing Winds If the winds move over water – moist air is brought to the region. If the winds move over land – dry air is brought to the region.
- Downwind - Air sinks - Air warms and dries - No precipitation Leeward Side - Faces the wind - Air rises - Air cools and condenses - Precipitation occurs Windward Side 3. The Rainshadow Effect
How does the Rainshadow Effect affect climate? Windward Side: ___________ Leeward Side: _____________ cool, moist warm, dry
4. Distance from Large Bodies of Water (oceans, seas, large lakes) oceans hold their heat longer creating mild coastal climates