What affects climate

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What affects climate

  1. 1. Climate
  2. 2. What Affects Climate? <ul><li>Science words : </li></ul><ul><ul><li>Tropics </li></ul></ul><ul><ul><li>Polar zones </li></ul></ul><ul><ul><li>Temperate zone </li></ul></ul>
  3. 3. Climate <ul><li>Climate </li></ul><ul><ul><li>Determined by averaging weather over a long period of time- at least 30 years </li></ul></ul><ul><li>Temperatures on Earth </li></ul><ul><ul><li>Range from -89.2 degrees C to 57.8 degrees C </li></ul></ul><ul><li>Factors that affect a regions climate: </li></ul><ul><ul><li>Latitude </li></ul></ul><ul><ul><li>Topography </li></ul></ul><ul><ul><li>Oceans and lakes </li></ul></ul><ul><ul><li>Ocean currents </li></ul></ul><ul><ul><li>Air mass </li></ul></ul>
  4. 4. Latitude Affects Climate <ul><li>Latitude close to equator receives most radiation </li></ul><ul><li>Tropics: </li></ul><ul><ul><ul><li>Region between latitudes 231/2 degrees north and 231/2 degrees south </li></ul></ul></ul><ul><li>Polar zones: </li></ul><ul><ul><li>Solar energy hits at low angle </li></ul></ul><ul><ul><li>Polar ice reflects radiation </li></ul></ul><ul><ul><li>Never really warm </li></ul></ul><ul><li>Temperate zones: </li></ul><ul><ul><li>Between tropic and polar zones </li></ul></ul><ul><ul><li>Moderate </li></ul></ul>
  5. 5. Topography Features Affect Climate <ul><li>Large Bodies of Water </li></ul><ul><li>Coastal regions: </li></ul><ul><ul><li>Warmer in winter, cooler in summer </li></ul></ul><ul><li>Ocean currents </li></ul><ul><li>Moisture </li></ul><ul><ul><li>Winds blowing from sea </li></ul></ul><ul><ul><ul><li>Contain more moisture then land </li></ul></ul></ul><ul><ul><li>Coast have wetter climate </li></ul></ul><ul><ul><ul><li>Prevailing winds blow to coast </li></ul></ul></ul><ul><li>Mountains </li></ul><ul><li>Same latitude: </li></ul><ul><ul><li>Mountain’s climate cooler then sea level </li></ul></ul><ul><li>Less air molecules to absorb radiation </li></ul><ul><li>One side of mountain is cooler then other </li></ul><ul><ul><li>Other side can contain a desert </li></ul></ul><ul><li>Mountains and large bodies of water affect climate </li></ul><ul><li>Large cities -change weather patterns </li></ul>
  6. 6. Large Cities Affect Climate <ul><li>Radiation strikes </li></ul><ul><ul><li>Areas of vegetation </li></ul></ul><ul><ul><ul><li>Radiation energy evaporated </li></ul></ul></ul><ul><ul><li>City areas </li></ul></ul><ul><ul><ul><li>Streets, parking lots, and buildings absorb radiation energy </li></ul></ul></ul><ul><ul><ul><li>Heat up and radiate heat into atmosphere </li></ul></ul></ul><ul><ul><ul><li>Car exhaust traps heat </li></ul></ul></ul><ul><ul><ul><ul><li>“ heat island” </li></ul></ul></ul></ul><ul><li>Large buildings </li></ul><ul><ul><li>Change local winds and precipitation patterns </li></ul></ul>
  7. 7. Climate Types <ul><li>Science Words: </li></ul><ul><ul><li>Adaptation </li></ul></ul><ul><ul><li>Hibernation </li></ul></ul>
  8. 8. Climate Classification <ul><li>Koppen Climate Types </li></ul><ul><li>Climates in six groups </li></ul><ul><ul><li>Tropical </li></ul></ul><ul><ul><li>mild </li></ul></ul><ul><ul><li>dry </li></ul></ul><ul><ul><li>continental </li></ul></ul><ul><ul><li>polar </li></ul></ul><ul><ul><li>High elevation </li></ul></ul>Climatologists- study climates use method to classify climate types 1918 – Wladimir Koppen- observed types of vegetation – region depends on climate of area

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