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Atmospheric and Oceanic Optics

2020 year, number 4

Calculation of transmittance attenuation of infrared radiation stream on slant paths in the atmosphere, taking into account the sphericity of the Earth's surface

I.V. Znamenskii1, A.A. Tikhomirov2
1A joint-stock company "Precision Instrumentation Systems", Moscow, Russia
2Institute of Monitoring of Climatic and Ecological Systems of the Siberian Branch of the Russian Academy of Sciences, Tomsk, Russia
Keywords: ИК-излучение, ослабление пропускания, наклонные трассы, малые углы места, сферичность земной поверхности


Relations and calculation results are presented for determining the effective thickness of the deposited water vapor layer and the effective optical path length adjusted by the absorption capacity of carbon dioxide to the surface layer, taking into account the sphericity of the earth's surface for the operation of infrared optoelectronic systems on slant paths at elevation angles of less than 20°.