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| Titel |
Intercomparison between aerosol optical properties by a PREDE skyradiometer and CIMEL sunphotometer over Beijing, China |
| VerfasserIn |
H. Che, G. Shi, A. Uchiyama, A. Yamazaki, H. Chen, P. Goloub, X. Zhang |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 8, no. 12 ; Nr. 8, no. 12 (2008-06-25), S.3199-3214 |
| Datensatznummer |
250006226
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| Publikation (Nr.) |
 copernicus.org/acp-8-3199-2008.pdf |
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| Zusammenfassung |
This study compares the aerosol optical and physical properties
simultaneously measured by a SKYNET PREDE skyradiometer and AERONET/PHOTONS
CIMEL sunphotometer at a location in Beijing, China. Aerosol optical
properties (AOP) including the Aerosol Optical Depth (AOD), Angstrom
exponent (α), volume size distribution, single scattering albedo
(ω) and the complex refractive index were compared. The difference
between the two types of instruments was less than 1.3% for the AOD and
less than 4% for the single scattering albedo below the wavelength of
670 nm. There is a difference between the volume size distribution patterns
derived from two instruments, which is probably due to difference of
measurement protocols and inversion algorithms for the respective
instruments.
AOP under three distinct weather conditions (background, haze, and dust
days) over Beijing were compared by using the retrieved skyradiometer and
sunphotometer data combined with MODIS satellite results, pyranometer
measurements, PM10 measurements, and backtrajectory analysis. The results
show that the significant difference of AOP under background, haze, and dust
days over Beijing is probably due to different aerosol components under
distinct weather conditions. |
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