ATMO 170A1 1st Edition Lecture 6Outline of Last Lecture I. ConductionII. Convectiona. Free Convectionb. Forced ConvectionIII. RadiationOutline of Current Lecture II. Radiation (Continued)a. All bodies emit radiation...b. UV-Cc. UV-Bd. UV-Ae. The atmosphere is not a black body...f. The Greenhouse EffectCurrent Lecture- The sun and the earth behave like black bodies.◦ Black bodies: Perfect absorbers and emitters of radiation- All bodies emit radiation (above 0K).◦ The sun emits max radiation at 0.5 microns (shortwave).◦ The higher the temperature, the more radiation an object emits. ◦ Objects with higher temperatures emit at shorter wavelengths. - UV-C:◦ Absorbed by the Ozone in the StratosphereThese 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.◦ Chromosome mutations◦ Kill single-cell organisms- UV-B:◦ Cancer◦ SPF → How much UV-B is blocked◦ Sunburns - UV-A:◦ Burning/redness◦ Prolonged exposure can cause cancer- Enormous amounts of the energy that is received by the earth is from the sun. - Earth emits longwave◦ Energy received = Energy emitted◦ Radiative Equilibrium Temperature (-18°C or 0°F): Too cold for human existence- The Atmosphere◦ The atmosphere is not a black body. ◦ The atmosphere is transparent in the visible range. ◦ The atmosphere absorbs most of the longwave (and emits most of the longwave). ◦ Radiation (longwave) is absorbed by the atmosphere.◦ Radiation is emitted by the atmosphere to the earth. ▪ Temperatures on earth are ~60°F on average.- The Greenhouse Effect◦ The Greenhouse Effect allows humans and other organisms to live on Earth. ◦ Since the industrial revolution, humans have been rapidly increasing the amount of CO2 in the atmosphere. The main cause of the CO2 increase includes: CFCs, Methane, and Nitrous Oxide.These 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.◦ Earth's temperature has been warming 1°F/Century.◦ The greenhouse effect is caused by the atmosphere absorbing longwave radiation.- Solar Radiation◦ Radiation from the sun is nearly constant, and we receive 1367 w/m2 at the top of the atmosphere. However, this radiation is not evenly distributed around the earth. - Higher Temperature → Higher Evaporation → More Water Vapor → More Greenhouse Gas → Higher Temperature ◦ This cycle: positive feedback.These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a