ERTH 1030 Lecture Notes - Electromagnetic Radiation, Antarctic Circle, Arctic Circle
5 Feb 2014
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Chapter 2: earths global energy balance. Make note of figure 2. 11. Ordered in increasing wavelength: [(short)gamma, x- ray, ultraviolet,] [(long) visible, infrared, micro, You do not need to memorize quantitative values of wavelengths. Radiation and temperature: hot objects radiate more energy than cooler objects, hotter objects emit shorter wavelengths. More radiation comes from the sun compared to the earth because the earth is so much hotter. The radiation that is being emitted are more often uv rays. Visible radiation is very intense radiation, that is why we can see it. Usually the more intense radiation is absorbed by the atmosphere. Flow rate of solar energy. Measured outside (at the edge of the atmosphere) Measured in watts/meter squared (w/m2) Earth will have no effect on this constant. More sunlight is being received in equatorial regions because it is a direct path for sun light (90 > 30 ) Earths axis rotates 23. 5 off the vertical.
