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. Earth’s . protective bubble. NASA accessed via Wikipedia . compared to the size of the Earth (10. 4. km), the atmosphere is a thin shell (120 km).. . Earth’s Atmosphere. http://www.gsfc.nasa.gov/gsfc/earth/pinatuboimages.htm. What is the atmosphere?. Definition: The envelope of gases surrounding planet Earth.. Why do we need the atmosphere?. The atmosphere provides protection for the planet from objects in space and contains gasses that help sustain life.. 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. transmitted. absorbed. reflected. 1. transmission. Radiation passes through atmosphere unimpeded.. Shortwave and longwave “windows” . 2. absorption. Energy is transferred to absorber; absorber emits energy. Reflect, Refract, and Absorb By: Emily Key Reflect What does reflect mean? - Light bounces off an object Refract What does refract mean? - The of bending of light as it passes from substance to another ATMOSPHERE Composition of the Atmosphere The atmosphere is comprised of a variety of gases: Major Constituents (99%): Nitrogen (N): 78% Oxygen (O 2 ): 21% Trace Constituents: Other: 1% 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. vs. 1.46 mm, . p < 0.0001; . IVUS showed lower post-procedure mean lumen area in BVS arm (4.9 vs. 5.7 mm. 2. , . p < 0.001. ). 1-year scaffold thrombosis in . two . BVS . patients; . no stent thrombosis in DES arm. Do now activity: . Describe the difference between the processes of conduction and convection.. GOOD PROGRESS:. Describe some sources of infrared radiation. Explain how energy is transferred by radiation. 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). .