The modification of ultraviolet Total Ozone Unit (TOU) for absorbing aerosol index

Yongmei Wang; Houmao Wang; Weihe Wang; Jianguo Fu; Liping Fu

doi:10.1117/12.2179985

13 April 2015 The modification of ultraviolet Total Ozone Unit (TOU) for absorbing aerosol index

Yongmei Wang, Houmao Wang, Weihe Wang, Jianguo Fu, Liping Fu

Proceedings Volume 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II; 95221F (2015) https://doi.org/10.1117/12.2179985
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held August-October 2014, 2014, China, China

Abstract

Aerosol Absorbing Index (AAI) can be used for the observation of the absorbing aerosol including dust, biomass burning and volcano ash etc. Recently, with much more aerosol pollution events occurring, atmospheric environment is getting worse in China. The AAI derived from FY-3/TOU has been used for the atmospheric aerosol pollution observation since 2013 by China Meteorological Administration. In this paper, the precision factors analysis of AAI retrieval from TOU is made. Based on the analysis, the wavelengths most suitable for AAI retrieval are 354 nm and 388 nm. Besides, considering the low spatial resolution of TOU (50×50 km2), a modified UV sensor is proposed with characters of much smaller size, higher sensitivity (SNR<4000) and higher spatial resolution (<5 km) which is much more suitable for observing aerosol pollution events, especially in urban areas.

Citation Download Citation

Yongmei Wang, Houmao Wang, Weihe Wang, Jianguo Fu, and Liping Fu "The modification of ultraviolet Total Ozone Unit (TOU) for absorbing aerosol index", Proc. SPIE 9522, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part II, 95221F (13 April 2015); https://doi.org/10.1117/12.2179985

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KEYWORDS

Aerosols

Ozone

Ultraviolet radiation

Absorption

Pollution

Spatial resolution

Atmospheric particles

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