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http://dx.doi.org/10.14191/Atmos.2011.21.3.311

Comparison of Aerosol Optical Properties from Different Models of Skyradiometer  

Choi, Yongjoo (Department of Environmental Science, Hankuk University of Foreign Studies)
Ghim, Young Sung (Department of Environmental Science, Hankuk University of Foreign Studies)
Sohn, Byung-Ju (School of Earth and Environmental Sciences, Seoul National University)
Publication Information
Atmosphere / v.21, no.3, 2011 , pp. 311-317 More about this Journal
Abstract
Aerosol optical properties from the radiation measurements by SKYNET PREDE skyradiometers, POM-01 and POM-02 were compared during the inter-calibration campaign at Seoul in February 2009. The monochromatic solar flux at the top of the atmosphere ($F_0$) gave a relative standard deviation (RSD) of 9-10% for both instruments. This comparatively high value of RSD was probably because $F_0$ was determined at short time intervals, in the morning and afternoon, using the measurements made in the polluted environment of Seoul. Although POM-02 was more effective in tracking the solar radiation, aerosol optical depths (AODs) from the two instruments were very similar after the cloud screening procedure. The squared correlation coefficients ($R^2$) of single scattering albedo (SSA) and real and imaginary refractive indices between the two instruments was around 0.5 but increased to 0.7-0.8 when only using AOD greater than 0.4. Nevertheless, mean values of the Angstrom exponent, SSA, and the imaginary refractive index of POM-02 were higher than those of POM-01.
Keywords
POM-01; POM-02; Cloud screening; Aerosol optical depth; Aerosol optical properties;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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