CLIMATE
WHERE IS THIS?
CLIMATE V. WEATHER Weather is day-to-day events Climate is patterns of weather that can be expected in a given area
CLIMATE Interaction of atmosphere, lithosphere, Two properties of the globe influence climate: Angle of the Ecliptic Coriolis Effect
ANGLE OF THE ECLIPTIC
CORIOLIS EFFECT Because the earth rotates at a tilted angle (the ecliptic), a force develops that causes wind and water to move in a clockwise direction north of the equator Counterclockwise south of the equator At the equator itself is “doldrums” Thus, the equator is a phenomenon with real physical effects on the globe (as opposed to the arbitrary Greenwich or Prime Meridian)
FIVE FACTORS CREATE CLIMATE Solar radiation Precipitation Winds Ocean Currents Elevation
SOLAR RADIATION
PRECIPITATION – THINGS TO REMEMBER Warm air rises Cool air sinks Warm air can hold more moisture than cool air When warm air rises and cools, moisture is released Where this occurs in nature, this situation causes precipitation
PRECIPITATION: CONVECTIONAL
PRECIPITATION: OROGRAPHIC
PRECIPITATION: FRONTAL
FORMS OF PRECIPITATION Rain Freezing rain Sleet Hail Snow Frogs
GLOBAL WIND PATTERNS
JET STREAM – A HIGH-ALTITUDE STREAM OF AIR THAT CONTROLS WEATHER
MONSOONS
OCEAN CURRENTS Circulate warm water from equator Cold water from poles Circular pattern or “gyres” Where cold and warm currents meet, “upwelling” occurs, oxygenating the water and making great fishing conditions Current patterns are still not fully understood
OCEAN CURRENTS Circulation of warm and cold watersCurrent names
EFFECT OF ELEVATION
TYPES OF CLIMATES NAMING SYSTEMS
TROPICAL RAINY
TROPICAL SAVANNA Irregular rainy and dry seasonsSavannas flank rainforests
DESERTS –FOUR SCENARIOS (SOMETIMES OVERLAP) Interior of continents Cold currents off coast Between 18 and 31 degrees latitude Rain shadows
INTERIOR DESERTS
COASTAL DESERTS
RAIN SHADOW DESERTS Painted Hills
MEDITERRANEAN
MARINE OR MARINE WEST COAST RAINY! But mildBright green on map
HUMID CONTINENTAL
HUMID SUBTROPICAL
STEPPE Grasslands, mollisolsLow precipitation
SUBARCTIC
POLAR