Saturation Effect at Passive Location of Gas-Aerosol Cloud

The study tested a two-component cloud containing an aerosol and gas component, which is necessary to identify by spectroradiometric method. We analyzed the joint disturbing action on identification of aerosol radiation scattering and the transmission spectrum saturation outside of the characteristic absorption lines. We obtained analytical solutions for specific equations of the passive cloud location in the infrared wavelength range. The study shows that each equation can have two solutions. The solutions give the minimum and maximum concentrations of the gaseous component, when it is possible to identify it in the presence of the available aerosol concentrations. We obtained an asymptotic solution corresponding to the case when at the concentration of gas components there occurs saturation of only characteristic absorption lines. The solution shows the limit value of the aerosol concentration, when it is possible to identify the gas component for the existing signal/noise ratio of the used spectroradiometer.

References

[1] Korolenko L.I., Sinitsyna O.R. Measurement technique for pollution load in industrial discharge. Ekologiyaproizvodstva [Industrial Ecology], 2011, no. 11, pp. 50-53 (in Russ.).

[2] Fokin M.V., Bespalov M.S., Oseledets E.Yu. Atmosphere air quality control on boundary of estimated sanitary protection zone. Ekologiya proizvodstva [Industrial Ecology], 2010, no. 4, pp. 50-52 (in Russ.).

[3] Molles M.C. Ecology: Concepts and applications. 4th ed. New York, The McGraw-Hill Companies, Inc., 2008. 604 p.

[4] Sadovnikov R.N., Shatalov E.V., Efimov I.N. Definition of parameters of toxic chemical emission on the basis of results of detectors operation threshold. Ekologicheskie sistemy i pribory [Ecological Systems and Devices], 2012, no. 2, pp. 3-8 (in Russ.).

[5] Sadovnikov R.N., Boyko A.Yu., Shlygin P.E. Usage of lidar sensing for the estimation of control accuracy of chemical environment in the area of toxic substance cloud spreading in the course of accident at the chemical plant. Ekologicheskie sistemy i pribory [Ecological Systems and Devices], 2013, no. 1, pp. 35-41 (in Russ.).

[6] Morozov A.N., Svetlichnyy S.I., Tabalin S.E. Passive remote sensing by FTIR radiometer. Uspekhi sovremennoy radioelektroniki [Achievements of Modern Radioelectronics], 2007, no. 8, pp. 34-47 (in Russ.).

[7] Morozov A.N., Svetlichnyy S.I. Osnovy fur’ye-spektroradiometrii. Moscow, Nauka Publ., 2014. 456 p.

[8] Bashkin S.V., Boyko A.Yu., Kornienko V.N., Kochikov I.V., Lel’kov M.V., Mironov A.I., Morozov A.N., Pozvonkov A.A., Samorodov A.S., Svetlichnyy S.I., Tabalin S.E., Fufurin I.L., Shlygin P.E. Experimental results of investigating panoramic Fourier transform infrared spectrometer. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Estestv. Nauki [Herald of the Bauman Moscow State Tech. Univ., Nat. Sci.], 2016, no. 2, pp. 51-64 (in Russ.). DOI: 10.18698/1812-3368-2016-2-51-64

[9] Kochikov I.V., Morozov A.N., Fufurin I.L. Numerical procedures for substances identification and concentration calculation in the open atmosphere by processing a single FTIR measurement. Komp’yuternaya optika [Computer Optics], 2012, vol. 36, no. 4, pp. 554-561 (in Russ.).

[10] Sadovnikov R.N., Boyko A.Yu., Shlygin P.E. Estimation of influence of features of the gas-aerosol cloud composition on the background radiation spectrum of the exposed atmosphere. Vestn. Mosk. Gos. Tekh. Univ. im. N.E. Baumana, Estestv. Nauki [Herald of the Bauman Moscow State Tech. Univ., Nat. Sci.], 2013, no. 4, pp. 69-78 (in Russ.).

[11] Korn G.A., Korn T.M. Mathematical handbook for scientists and engineers: Definitions, theorems, and formulas for reference and review. McGraw-Hill Book Company, 1968.

[12] Nakamoto K. Infrared and Raman spectra of inorganic and coordination compounds, theory and applications in inorganic chemistry. New York, John Wiley and Sons, Inc., 1966.