GEO 211 1st Edition Lecture 3Outline of Last Lecture I. Earth’s Atmosphere’s vertical profile based on:A. Temperaturea. Troposphere1. Environmental or Normal Lapse Rate2. Radiosode3. Tropopauseb. Stratosphere1. Isothermal2. Stratopausec. Mesosphere1. Mesopaused. Thermopause1. MesosphereB. Compositiona. Homosphereb. HeterosphereOutline of Current Lecture II. Earth’s Atmosphere’s vertical profile based on:A. Functiona. Ozonosphereb. Ionosphere Current LectureIII. Earth’s Atmosphere’s vertical profile based on:A. Function (2 layers)a. Ozonosphere- important to plants and animals, does not allow certain sun rays to hit Earth, lower layer with ozone (O3) gas, max concentrations in stratosphere absorbs ultraviolent rays- Ozone molecules breaks down in process: O3 + UV O2 + OThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- O3 also broken down by Chlorofluorocarbons (CFCs)- CFCs contains chlorine, fluorine, and carbon- Synthetic, breaks down in stratosphere and releases chlorine (can be in the atmosphere for up to a year)- The released chlorine destroys ozone in a series of steps Cl + O3 ClO + O2 CLO + O Cl + O2b. Ionosphere- upper earth’s atmosphere, absorbing more high energy from sun(more broken and ionized), electrified region because the gases have been ionized- Reflects radio waves, permitting radio stations to be heard far beyond the horizon- Broken gases create a layer of fairly concentrated ions and free electrons- Ions are arranged in 3 layers of varying density1. F layer- no density2. E layer- average density3. D layer- high
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