Ecosystem Services of the Atmosphere By: Carlos Antonio Guanzon 8-Mandela Ecosystem Services of the Atmosphere “Ecosystem Services are the benefits people get from the ecosystem” (greenfacts.org) - How do we benefit from the atmosphere? - How does the atmosphere make life possible on Earth? A. Ozone layer B. Greenhouse gases C. Weather and Climate D. Solar Energy and Temperature Regulation E. Protection from Meteors leap.silvacom.com Ozone Layer Stratosphere, 20-30 km from Earth’s surface O+O2 = O3 Protection from UV radiation UV causes: cataracts, immune system suppression, genetic damage, skin cancer Environmental Concern: depleting ozone layer > Action Taken: CFC (chlorofluorocarbons) prohibition Greenhouse Gases Water vapor, carbon dioxide, nitrous oxide, methane Absorbs heat from sun and re-radiate back to Earth’s surface (papers.ssrn.com) > without them surface temperature is about -18 degrees Celcius (0 degrees Fahrenheit) (ase.tufts.edu) homecollection.biz Greenhouse Gases Environmental Concern: Global warming Action Taken: Fossil fuel : power plants, vehicles Conservation of forest, planting of trees Weather and Climate (eo.ucar.edu) Weather – the specific atmospheric conditions that exist at a particular place at a particular time - controlled by changes in air pressure Example: low pressure: clear skies high pressure: cloudy skies (rain) Climate – behavior of atmosphere over a long period of time - differs in regions of the world: > amount of sunlight > geographic factor: proximity to oceans, altitude Solar Energy and Temperature Regulation cosscience1.pbworks.com Solar Energy and Temperature Regulation Solar Energy: 30% reflected back to space 20% absorbed by greenhouse gases and re-radiated to earth’s surface 50% absorbed by earth’s surface Temperature of Earth: Normal: 15° C/ 59° F w/o Greenhouse gases: -18° C/ 0° F (*32° F freezing point) w/o solar energy reflected: +250° F (212° F boiling point) * based on moon’s temp (reflecting only 10% solar energy) Protection from Meteors Atmosphere (mesosphere) burns meteors before they hit the surface of the Earth • Meteors travel fast causing the atmospheric gases to compress quickly • Generate great amounts of heat, burning the objects • • temperatures can reach as high as 3,000 degrees Fahrenheit (1650 degrees Celsius) outerspaceuniverse.org Image References welter-4d.de/fplugs/freeplugins_en.html leap.silvacom.com/algar-ecosystem-services-assessment-project-kickoff/ http://www.homecollection.biz/greenhouse-gases-for-kids/ http://www.outerspaceuniverse.org/media/atmosphere-burning.jpg http://cosscience1.pbworks.com/f/124819246 http://image.slidesharecdn.com/convection-120524143258-phpapp02/95/role-ofconvection-in-creation-of-winds-3-728.jpg?cb=1337870043 odule7-011.png References p 509 and pp 518-523 of the Earth Science book prezi.com/kj8nokadoiyg/how-does-our-atmosphere-make-life-on-earth-possible// greenfacts.org/en/ecosystems/toolboxes/box2-1-services.htm papers.ssrn.com/sol3/papers.cfm?abstract_id=1114354 http://ase.tufts.edu/cosmos/view_chapter.asp?id=21& http://www.eo.ucar.edu/basics/wx_2.html http://www.outerspaceuniverse.org/how-earths-atmosphere-burns-meteorscomets-and-other-space-debris.html http://powermylearning.org/playlist/atmosphere0?utm_source=pin&utm_medium=post&utm_campaign=pmltd http://cseligman.com/text/planets/atmosphere.htm