BIO120H1 Chapter 4: BIO120 Notes - The Economy of Nature Textbook 6th ed Chapter 4

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15 Dec 2011
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BIO120H1 Full Course Notes
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Solar radiation and global patterns in temperature and precipitation. Climatic patterns originate with differences in the intensity of sunlight falling on different parts of the earth s surface. At higher latitudes, light strikers the earth s surface at a lower angle; spreads over greater areas y zenith: the sun s highest position each day; can be directly overhead in the tropics, near horizon in polar regions. Daily change in temperature (night & day) is caused by rotation of earth on axis. Lunar cycles of 28 days in amplitude of tides caused by revolution of moon. Seasonal change caused by revolution of earth around the sun. Distribution of solar energy with respect to latitude. N. hemisphere summer solstice (earth is most inclined towards the sun) on june 21; n. hemisphere winter solstice (earth is tilted furthest away from the sun) on dec. 22.

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