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Proceedings Paper

UV irradiance monitoring and effects of aerosol optical depth on the ground-based measurement of ultraviolet irradiance at Kwangju, Korea
Author(s): Young Joon Kim; Jeong Eun Kim; Seong Yun Ryu; Kehinde Olufunso Ogunjobi
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Paper Abstract

Ground-based measurement of ultraviolet irradiances with UV-A and UV-B sensors was made at Kwangju (35.13°N, 126.53°E), Korea from June 1998 to June 2001. These sensors measure integrated global UV radiation in 280-315 nm and 315-400 nm wavelength range, respectively. Measurement outputs from the UV sensors were sampled at every 15 seconds interval and saved every minute as a mean value into a data logger. The results showed that monthly mean values of UV-A and UV-B irradiances were maximized at 75 W/m2 and 1.7 W/m2, respectively. Total atmospheric optical depth was determined by analyzing the total and diffuse solar irradiances measured by a collocated multifilter rotating shadowband radiometer. Aerosol optical depth for 415 nm was determined by subtracting the contribution by Rayleigh scattering from total optical depth. Hourly and daily mean values of ground-based UV-A and UV-B irradiances were analyzed to investigate the effects of total atmospheric aerosol amount on them, especially those of the Asian dust storm particles in the spring.

Paper Details

Date Published: 1 July 2003
PDF: 8 pages
Proc. SPIE 4896, Ultraviolet Ground- and Space-based Measurements, Models, and Effects II, (1 July 2003); doi: 10.1117/12.466206
Show Author Affiliations
Young Joon Kim, Kwangju Institute of Science and Technology (South Korea)
Jeong Eun Kim, Kwangju Institute of Science and Technology (South Korea)
Seong Yun Ryu, Kwangju Institute of Science and Technology (South Korea)
Kehinde Olufunso Ogunjobi, Kwangju Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 4896:
Ultraviolet Ground- and Space-based Measurements, Models, and Effects II
Wei Gao; Jay R. Herman; Guangyu Shi; Kazuo Shibasaki; James R. Slusser, Editor(s)

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