BIO120H1 Lecture Notes - Vehicle Emissions Control, Rodent, Orthohantavirus
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BIO120H1 Full Course Notes
Verified Note
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Document Summary
Long term prevailing weather in an area. Largest determination of life in an area. Variations: daily, seasonal, several years (el nino) longer term change b/c of changes in intensity and distribution of solar radiation reaching earth"s surface. Sunlight intensity (affects components of climate: wind, precip, ocean circ) Varies over year as earth changes its orientation in space as it orbits the sun (tilted on axis by 23. 5) Tropics: direct sun, minor changes in temp, seasons characterized by rain. Higher lat (further n+s): less sun (sun is spread over a larger area because received at an angle + took a longer path thru the atmos) Both hemispheres get equal sun during spring and fall equinoxes. Equator: gets more sun (air + bodies of water warm under the sun) Difference in density causes hear to rise. Also generated by rotation of ea westward + eastward winds affect ocean currents. Tropical waters carry heat towards poles along east coast continents.
