These 'Fraunhofer' lines are due to the absorption of light of specific frequencies by the gases in the upper atmosphere of the sun. \(1\). Line spectra are produced when electrons move from one ...

187. David M. Slocum, "Molecular line shape analysis at terahertz frequencies using multispectral fitting," Ph.D. dissertation, Dept. Physics and Applied Physics ...

transitions due to these can be seen in very long absorbing paths such as are present in the atmosphere. This report shows that absorption in the solar spectrum near 4.2µ is due to collision ...

Earth radiance from the UV to the IR range showing the absorption spectrum for the most important atmospheric trace gases. Satellite remote sensing is a powerful tool for investigating atmospheric ...

Since many of these gases are trace gases with extremely weak absorption/emission features ... NASA’s Planetary Spectrum Generator is well-suited for the simulation of planetary atmospheric spectra ...