1%20Climate%20Change%20-%201%20Greenhouse%20Effect%20and%20Related%20Stuff

1%20Climate%20Change%20-%201%20Greenhouse%20Effect%20and%20Related%20Stuff

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The Economics of Climate Change–C 175 The Economics of Climate Change C 175 Christian Traeger Part 1: Introduction to Climate Change uggested Reading: Suggested Reading: IPCC (2007), “Climate Change 2007: The Physical Science Basis”. ummary for Policymakers” Summary for Policymakers . Congressional Budget Office (2003), “The Economics of Climate Change: A Primer”, Chapter 2: “The Scientific and Historic Content”. , p Spring 09–UC Berkeley – Traeger 2 Climate Change 1
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The Economics of Climate Change–C 175 Greenhouse Effect & Related Stuff Spring 09–UC Berkeley – Traeger 2 Climate Change 2
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Electromagnetic Waves The Economics of Climate Change–C 175 Source: http://en.wikipedia.org/wiki/Electromagnetic_spectrum#Microwaves , adapted Temperature Conversion: See section or e.g. http://www.unit conversion.info/temperature.html Spring 09–UC Berkeley – Traeger 2 Climate Change 3
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`Electromagnetic Spectrum (‘Light’) of Sun and Earth The Economics of Climate Change–C 175 Source: http://marine.rutgers.edu/mrs/education/class/josh/black_body.html . Electromagnetic wave spectrum for Sun (max~500nm=.5 micrometer) and Earth (max ~10 micrometer) Planck’s la a ‘black bod ’ emits electromagnetic ae s as a function of its temperature By Planck s law a black body emits electromagnetic waves as a function of its temperature. The magnitude of the Earth curve has been magnified 500,000 times. 2 Climate Change 4 Spring 09–UC Berkeley – Traeger
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ergy Flow from the Sun The Economics of Climate Change–C 175 Energy Flow from the Sun W=Watts =Energy per time unit(=J/s) Solar constant Energy per time unit (J/s) that would fall on an ‘average’ solar ore on Blackboard panel (or on crop) per square meter, if there would be neither clouds nor More on Blackboard. atmosphere. Spring 09–UC Berkeley – Traeger 5
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Surface Albedo Earth, 7 th to 22 nd of April 2002 The Economics of Climate Change–C 175 NASAs Terra satellite Moderate Resolution Imaging Spectroradiometer (MODIS, http://modis.gsfc.nasa.gov) verage Surface lbedo reflectivity) or Earth: 13% Average Surface Albedo (=reflectivity) or Earth: Planetary Albedo Earth (Surface + Atmosphere): 30% Spring 09–UC Berkeley – Traeger 2 Climate Change 6
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Surface Albedo, examples The Economics of Climate Change–C 175 Fresh Snow 75–95 % Old Snow 40–70 % Sea Ice A 30–40 % Dry Sand Dune 35–45 % Wet Sand Dune 20–30 % orest (Needle Trees) % Forest (Needle Trees) 5 15 % Water (steep incidence) 7–10 % Wasser (flat incidence) 20–25 % ( ) 5 Spring 09–UC Berkeley – Traeger 2 Climate Change 7
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The Economics of Climate Change–C 175 Source: http://www.grida.no/climate/vital/03.htm Spring 09–UC Berkeley – Traeger 2 Climate Change 8
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Absorption and Transmission in the Atmosphere The Economics of Climate Change–C 175 Spring 09–UC Berkeley – Traeger 2 Climate Change 9
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reenhouse Effect The Economics of Climate Change–C 175 Greenhouse Effect Source: Presentation by Peter Köhler @ AWI Bremerhaven.
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This note was uploaded on 09/04/2010 for the course EEP 175 taught by Professor Christiantraeger during the Fall '09 term at University of California, Berkeley.

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1%20Climate%20Change%20-%201%20Greenhouse%20Effect%20and%20Related%20Stuff

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