Rocky Planet Atmospheres: Greenhouse Effect
Rocky Planet Atmospheres: Greenhouse Effect AY 101
Popular in Introduction to Astronomy
Popular in Physics 2
This 1 page Class Notes was uploaded by Alyssa Hendrixson on Friday February 6, 2015. The Class Notes belongs to AY 101 at University of Alabama - Tuscaloosa taught by Dean Martin Townsley in Winter2015. Since its upload, it has received 69 views. For similar materials see Introduction to Astronomy in Physics 2 at University of Alabama - Tuscaloosa.
Reviews for Rocky Planet Atmospheres: Greenhouse Effect
Report this Material
What is Karma?
Karma is the currency of StudySoup.
You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!
Date Created: 02/06/15
AY 101 Lecture Notes Friday February 6 2015 Rocky Planet Atmospheres Greenhouse Effect 0 The Rocky planets and the moon 0 Though formed in similar way and composed of similar material the roclq planets39 surfaces and atmospheres differ remarkably 0 Mercury and the Moon heavily cratered compared to others 0 Venus Earth and Mars have signi cant atmospheres Origin of atmospheres 0 Some compounds water ammonia methane that were integrated into planet39s rocks 0 Geological activity interior heat releases these compounds via outgassing to form atmospheres o Geologically dead planets can no longer replenish their atmospheres Greenhouse Effect 0 Scienti cally known Rocky planet atmospheres increase surface temperature 0 Evidence Energy transfer among Sun atmosphere and surface of Earth 0 Technique Spectrum at different temperatures and absorption of light in atmosphere Atmospheric Absorption 0 Many wavelengths outside the optical are absorbed by the atmosphere 0 Thermal emission 0 Thermal radiation or quotblackbodyquot radiation All objects emit thermal radiation Peak wavelength gets shorter with increasing temperature Hotter objects emit more energy per area in addition to being quotbluerquot Thermal emission from everyday objects on earth peaks in the infrared Thermal emission from the sun peaks in the visible 0 Re ection scattering transmission 0 We perceive objects through their scattered light 0 All of these processes can be accompanied by absorption which changed the spectrum color of the light by removing intensity at some wavelengths Can happen in combination Atmospheric Greenhouse effect 0 Atmosphere transparent in optical allowing sun to heat surface 0 Not transparent in infrared quottrappingquot heat near surface 0 Without greenhouse gasses Earth would be all below freezing
Are you sure you want to buy this material for
You're already Subscribed!
Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'