BIO120H1 Chapter 4: Part 4 - Patterns of climate from global to habitat scale
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Part 4 - patterns of climate from global to habitat scale. Latitudinal patterns: how the sun heats the earth. Uneven distribution of radiant electromagnetic energy from the tilting of the earth(23. 5 ) Photon density declines as moving toward the poles. Spring and autumn equinoxes: sun above equator. North summer solstice: over 23. 5 n - tropic of cancer. Winter solstice: 23. 5 s - tropic of capricorn. Belt around these latitudinal lines are called tropical region. The solar equator: the line of latitude closest to the sun oscillates between the tropic line, making one cycle per year. Most of the energy reaching the earth from the sun is in the spectral range of light, and those wavelengths pass through air without giving much of their energy to the air molecule. When light hits solid surface or water, they are absorbed and radiated at longer, That"s why we consider air transparent infrared wavelengths.
