Photolysis frequency measurement techniques: results of a comparison within the ACCENT project
作者： B. Bohn , G. K. Corlett , M. Gillmann , S. Sanghavi , G. Stange
关键词: Optics 、 Spectroradiometer 、 Analytical chemistry 、 Field campaign 、 Chemistry 、 Photodissociation
摘要: An intercomparison of different radiometric techniques measuring atmospheric photolysis frequencies j (NO2), (HCHO) and (O 1 D) was carried out in a two- week field campaign June 2005 at JGermany. Three double-monochromator based spectroradiometers (DM-SR), three single-monochromator with diode-array detectors (SM-SR) seventeen filter radiome- ters (FR) (ten (NO2)-FR, seven D)-FR) took part this comparison. For all spectroradiometer re- sults agreed within ±3%. (HCHO), agreement slightly poorer between 8% +4% the DM-SR ref- erence result. SM-SR deviations were explained by spectral resolutions lower accuracies caused decreased sensitivities photodiode arrays wave- length range below 350 nm. D), results
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