Factors affecting climate
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  • 1. FACTORS AFFECTING CLIMATE K.SUGUNA.R PGT GEO
  • 2. FACTORS 1. 2. 3. 4. 5. 6. LATITUDE ALTITUDE DISTANCE FROM THE SEA PRESSUR AND WIND SYSTEM RELIEF OCEAN CURRENTS
  • 3. LATITUDE • DUE TO THE CURVATURE OF HE EARTH THE AMOUNT OF SOLAR ENERGY RECEIVED VARIES ACCORDING TO LATITUDE • TEMPERATURE DECREASES FROM EQUATOR TO POLAR REGION • TROPICAL REGION-HOT • POLAR REGION –COLD • TEMPERATE REGION –MODERATE
  • 4. LATITUDE TROPIC OF CANCER PASSES THROUGH THE CENTRE OF INDIA SOUTH INDIA EXPERIENCES TROPICAL CLIMATE NORTH INDIA EXPERIENCES TEMPERATE CLIMATE GREEN LAND –POLAR CLIMATE
  • 5. ALTITUDE • AS WE GO FROM SURFACE OF THE EARTH TO HIGHER ELEVATIONS ATMOSPHERIC TEMPERATURE DECREASES. • NORMAL LAPSE RATE -1O C /165m HEIGHT • ATMOSPHERE GET HEATED FROM BELOW
  • 6. ALTITUDE • HILLY AREAS ARE COOLER THAN PLAIN AREAS • OOTY IS COOLER THAN COIM BATORE • BANGALORE IS COOLER THAN CHENNAI
  • 7. DISTANCE FROM THE SEA • SEA EXERTS A MODERATING INFLUENCE ON CLIMATE • IF THE PLACE IS LOCATED AWAY FROM THE SEA THEN THE MODERATING INFLUENCE OF THE SEA DECREASES
  • 8. DISTANCE FROM THE SEA • PLACES IN THE INTERIOR LOCATION EXPERIENCES EXTREME CLIMATE • COASTAL AREAS EXPERIENCES EQUABLE CLIMATE
  • 9. RELIEF • • • • HEIGHT AND ASPECT OF THE RELIEF INFLUENCES THE CLIMATE OF A REGION MOUNTAINS ACT AS A CLIMATIC BARRIER IT PREVENTS THE COLD/HOT WIND AND PROTECT THE REGION HIMALAYAS ACTS AS A CLIMATIC BARRIER
  • 10. RELIEF • • • • IF THE MOSTURE LADEN WINDS BLOW PERPENDICULAR TO A MOUNTAINIT CAUSES OROGRAPHIC RAINFALL WINDWARD SIDE RECEIVES MORE RAINFALL WHERE AS LEEWARD SIDE REMAINS AS A RAINSHADOW REGION WESTERN GHATS CAUSES OROGRAPHIC RAINFALL
  • 11. PRESSURE AND WIND SYSTEM • • • • • AIR PRESSURE AFFECTS THE WIND SYSTEM WIND AFFECTS THE RAINFALL OF A REGION HUMID AIR GIVES RAINFALL WIND FROM CONTINENT –DRY WIND FROM OCEANS- WET
  • 12. OCEAN CURRENTS•MASS MOVEMENTS OF OCEAN WATER FROM ONE PART OF THE OCEAN TO ANOTHER PART. •TWO TYPES: •WARM CURRENT •COLD CURRENT
  • 13. OCEAN CURRENTSWARM CURRENT INCREASES THE TEMPERATURE COLD CURRENT –DECREASES THE TEMPERATURE GULF STREAM INCREASES THE TEMPERATURE OF THE WESTERN COAST OF EUROPE