PPT-Gases in the atmosphere absorb radiation ---------------

Aziz AlSaadNasser AlabduljaleelAbdulkareem AbuTalebAziz AlOthman 13 Vocabulary Ultraviolet radiation rays of light that cannot be seen and that are a little bit shorter than the rays of violet light. Oscillating . electric and magnetic fields. propagate through space. Virtually . all energy exchange between the Earth and the rest of the Universe. is by electromagnetic radiation. Most of . what we perceive as temperature. of Global Warming. Read all about it!. Excellent book and even better website by Spencer . Weart. http://. www.aip.org. /history/climate/. index.htm. (Or just . google. : . weart. global warming). Why is it so warm?. and the Impact on Living Things. Earth’s Atmosphere. The gases that surround Earth (and other planets) make up the atmosphere. These gases are like an envelope that protects us from the radiation that is caused by the sun’s . Primordial (or non-radiogenic) noble gases (. 3. He, . 22. Ne, . 36. Ar, . 130. Xe): isotopes not produced on Earth through radioactive decay . Radiogenic noble gases: produced from radioactive decay (. in this class.. You will be compensated $$$ for your note-taking.. To . apply to be a note-taker please visit. http://sds.umbc.edu/becoming-a-note-taker/. Composition and Structure of the Atmosphere. absorb different wavelengths of radiation). % Scattering (all gases combined) . Mostly O. 3. O. 3. atmospheric “window”. O. 3. Mostly O. 3. Notes: Components of the Atmosphere . Not. Shown in the Figure. Both deal with atmospheric phenomena. Weather. denotes the state of the atmosphere over short time scales - hours or days. Climate. denotes these phenomena over long time scales -many years or centuries. transmitted. absorbed. reflected. 1. transmission. Radiation passes through atmosphere unimpeded.. Shortwave and longwave “windows” . 2. absorption. Energy is transferred to absorber; absorber emits energy. Proportions of gases in the atmosphere. Composition and evolution of the atmosphere. Combustion of fuels. Source of atmospheric pollutants.. Most fuels may also contain some . sulfur. .. Gases from burning fuels. In fact, the atmosphere receives very low amount of heat energy from the sun as it receives most of its energy from the long wave terrestrial radiation.. Atmosphere receive energy from the sun and the earth in different ways. . . of . Atmosphere . Composition of the Atmosphere Permanent . constituents. Gases . that remain essentially constant by . percent: . Nitrogen. , Oxygen, Argon, Neon, Helium, Krypton, Hydrogen Variable constituents . 3. Its structure, composition and dynamics. In last week’s lecture, we focussed on how weather is generated.. The key ingredients are energy and gradients.. Last Week’s Lecture. Incoming energy from the Sun is balanced with outgoing radiative cooling of the Earth, resulting in an equilibrium temperature of about 15 °C. . 3. He, . 22. Ne, . 36. Ar, . 130. Xe): isotopes not produced on Earth through radioactive decay . Radiogenic noble gases: produced from radioactive decay (. 4. He, . 40. Ar, . 136. Xe) or through nuclear reactions (. c.. 70 km (. c.. 43 mi), characterized by a relatively constant composition of its component gases. Air above a region of surface high pressure is more dense than air above . a region of surface low pressure (at the same temperature). .