infrared camera wavelength
How transparent or opaque atmospheric clouds at infrared wavelengths?
In other words, if I had an infrared camera or binoculars I could see by clouds? I refer to water droplet clouds, no dust. Thank you.
You could not see through the clouds. Liquid water has a high absorption of about 3400 cm-1 (OH stretch, very broad), 1640 cm-1 (bending) and 1200 cm-1 and under (librations). About> 90% of the infrared radiation is absorbed within 10 microns (1e-5m) at these wavelengths and clouds are more than a few microns thick. If the thickness of the water increases, so does the width of the absorption lines, so the wavelengths between and near the absorption above get 'filled in'. Second, in cloud droplets comparable in size to infrared wavelengths, so in May scattering is important. Even if the light is passed, all spatial information is lost.
 |
No items matching your keywords were found.