GEO 110 Lecture Notes - Lecture 4: Ultraviolet, Solar Irradiance, Fluorine
4 Feb 2020
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Document Summary
Annual insolation varies smoothly from equator to pole. High latitudes receive flow of solar energy. Insolation at poles 40 percent of what it is at the equator. Annual insolation high at the equator, sun directly overhead at noon every day throughout year. Tilt redistributes significant portion of isolation from equator to poles. Globe is divided into broad latitude zones based on the seasonal patterns of daily insolation. North and south polar zones subarctic and subantarctic zones. Nitrogen - 78% (converted by bacteria into a useful form in soils) Oxygen - 21% (produced by green plants in photosynthesis and used in. Carbon dioxide - 0. 025% (used by green plants during photosynthesis, Water vapor - less than 1-2% depending on moisture (absorbs heat radiation. Ozone is the upper atmosphere that sheilds life at the earths surface from produced by respiration and burning fossil fuels) and plays a role in global warming) harmful solar ultraviolet radiation.
