GEOG 131 Lecture Notes - Lecture 6: Radiant Energy, Sunburn, Shortwave Radio
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Continuing week 2: how does atmosphere interact with energy from the sun, transmission a. i. Energy passing through the atmosphere: absorption b. i. Uv light splits 02 and then the other oxygen binds with o2: abundant in stratosphere, especially above 20km, exists in other layers b. i. A lot of uv-c makes it here, and there are enough molecules to make it happen b. i. 1. Ozone is capable of absorbing harmful uv-c radiation that sunburn could have been worse: ozone in troposphere (where we live) is harmful pollutant! Days that are sunny and hot we can have an increase in ozone in troposphere, interaction of sun (photo dissociation) and semi trucks exhaust: where is it? d. i. Generally low over equator, most created here but moved poleward through slow moving circulation d. ii. Higher in mid to high latitudes: where depends on seasons d. iii. Low at poles: no insolation, but migrates to poles: where it isn"t. Thinning of the ozone layer in antarctic region e. ii.
