Greenhouse Molecules, Their Spectra and Function in the Atmosphere
Name : Greenhouse Molecules, Their Spectra and Function in the Atmosphere.
Category : Energy & Environment
Files Source: www.warwickhughes.com
File Added : July 23, 2010
Size : 96,69 KB
Download : 394
This online pdf files crated by Jack Barrett reprinted from ENERGY & ENVIRONMENT VOLUME 16 No. 6 2005. This files talk about introduction Greenhouse molecules, infrared spectroscopy of greenhouse gases, Why do molecules absorb IR radiation?, size of greenhouse effect, and concluding remarks.
Content Summary :
“The Earth’s atmosphere is largely composed of the diatomic molecules, dinitrogen, N2, and dioxygen, O2; 78.08% and 20.93% by volume respectively. They are radiatively inactive as is explained below. The remaining 0.97% is made up from argon (0.93%), carbon dioxide, (CO2 0.037%), methane, (CH4 0.00017%), dinitrogen monoxide, (N2O 0.000032%) and even smaller amounts of carbon monoxide, ozone, (O3) and the Group 18 inert gases, neon, helium, krypton and xenon. There are also traces of many other volatile compounds. Greenhouse [GH] molecules are those that absorb terrestrial radiation, that which is emitted by the Earth’s surface as a result of the warming effect of incoming solar radiation. Their absorption characteristics allow them to act in the retention of heat in the atmosphere and to ensure that the global mean temperature of the atmosphere is tolerable to life – the greenhouse effect. The more important compounds are water, carbon dioxide, methane, dinitrogen monoxide (nitrous oxide), and ozone, in decreasing order of effectiveness, mainly because of their concentrations. This paper outlines the reasons for their effectiveness.”….Download for more information!!
