GEOG 100 Chapter Notes - Chapter 3: Ellipse, Sustainable Organic Integrated Livelihoods, Chrysler 200C Ev

• School: Simon Fraser University
• Department: Geography
• Course: GEOG 100
• Professor: Ms.Kirmis

Document Summary

Describe the functioning of the atmospheric system in terms of the energy balance between solar and longwave radiation. Insolation: incoming solar radiation. hot bodies (aka sun) emit short wave radiation. (cid:374)(cid:396)g (cid:396)e(cid:272)ei(cid:448)ed at ea(cid:396)th"s su(cid:396)fa(cid:272)e (cid:396)adiated (cid:271)a(cid:272)k as lo(cid:374)g (cid:449)a(cid:448)e (cid:396)adiatio(cid:374) more easily absorbed by atmosphere (h2o vapour & Co2), most heating of atmosphere due to long wave radiation. Ozone layer: i) absorbs much harmful uv radiation: contribute to heating of mesosphere. Explain the changes in this balance due to external forcings (changes in solar radiation, changes in the albedo of the atmosphere and changes in the longwave radiation returned to space). Discuss the causes and environmental consequences of global climate change. troposphere (0-20 km) * ozone = 10-50 km, greatest concentration @ 20-30 km stratosphere (20-50 km) Earth absorbs 47% of short waves from sun, atmosphere absorbs 19%, 34% albedo (reflectivity) Atmospheric aerosols: particles that, when large enough, can scatter & absorb sunlight reduce visibility, redden sunrises/sets.