phy392_lecture04_web_2011

phy392_lecture04_web_2011 - PHY392S Physics of Climate...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
PHY392 - Physics of Climate Lecture 4, Page 1 PHY392S Physics of Climate Lecture 4 - Web Notes Planetary Radiation Solar and Thermal (Terrestrial) Radiation Radiative Equilibrium on a Planetary Scale A Simple Climate Model
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
PHY392 - Physics of Climate Lecture 4, Page 2
Background image of page 2
PHY392 - Physics of Climate Lecture 4, Page 3 Solar and Terrestrial Radiation
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Solar Radiation Spectrum PHY392 - Physics of Climate Lecture 4, Page 4 ultraviolet infrared VIS 5800 K Blackbody Solar radiation peaks in the visible Outside the atmosphere Sea Level
Background image of page 4
Thermal (IR) Radiation Spectrum This figure shows the infrared radiation emitted by the Earth and its atmosphere, with characteristics of Planck emission as well as molecular absorption spectra clearly visible. CO 2 is uniformly mixed in the atmosphere, while H 2 O and O 3 vary in space and time. PHY392 - Physics of Climate Lecture 4, Page 5
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Absorption of Radiation by the Atmosphere PHY392 - Physics of Climate Lecture 4, Page 6
Background image of page 6
The surface and atmosphere of a planet will reflect and scatter some radiation can see the Earth from “outside” The fraction of solar radiation reflected back into space from the planet is called the albedo . General definition: (no units) 0 A 1, depending upon the surface or planet. The fraction of solar radiation absorbed by a planet is (1 – A). Solar radiation incident on a planet Absorption Specular reflection Diffuse reflection Miguel Olivares , New York City, Jan 5, 2003. Absorption of Solar Radiation irradiance reflection to due exitance radiant E M A = = PHY392 - Physics of Climate Lecture 4, Page 7
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This “separability” of the radiation equations, which applies for most problems involving planetary atmospheres, is what makes some of these problems tractable. Link lies in the energy flow equations.
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/19/2011 for the course PHYSICS 392 taught by Professor Weak during the Spring '11 term at Toledo.

Page1 / 20

phy392_lecture04_web_2011 - PHY392S Physics of Climate...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online