METHOD OF DETERMINING ATMOSPHERIC AEROSOL CONCENTRATION IN MEGAPOLISES

摘要

FIELD: physics.;SUBSTANCE: method involves probing the atmosphere with a hyperspectrometer mounted on spacecraft, calculating total concentration of pollutants in percentages [%]_Σ based on the ratio of total ΔW_Σ attenuation of the reference Planck light flux passing twice through the atmosphere to attenuation ΔW(O₂) thereof in the oxygen O₂ absorption band, wherein atmospheric concentration of oxygen is equal to 21%; [%]_Σ=21%·ΔW_Σ/W(O₂); calculating relative shift (λ/λ_ref) of the weight-average wavelength reference Planck solar flux; calculating, based on an empirical relationship, concentration of pollutant gases [%]_gases in the atmosphere based on the calculated relative shift (λ/λ_ref); determining the difference Δ[%]=[%]_Σ-[%]_gases between total concentration of pollutants and concentration of gases and matching the obtained difference Δ[%] with the aerosol concentration on the probed path.;EFFECT: determining atmospheric aerosol concentration in megapolises using a single spectrometric measurement technique while eliminating requirements for simultaneous measurement of reference areas.;7 dwg