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Evaluation of ozone column amount from the solar backscattering spectra measured with a spectrograph onboard an aircraft

机译：根据飞机上的光谱仪测得的太阳反向散射光谱评估臭氧柱量

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摘要

Slant column amounts of ozone were evaluated from the solarbackscattered spectra measured with a simple spectrograph onboard anaircraft over the Pacific Ocean south of Japan in January 2002.A least-squares fitting method optimized on the basis of Bayesianstatistics was developed to evaluate them, and the random error in thefitting was about 2.4%. The evaluated slant column amounts of ozone werecompared with those calculated from the total ozone data measured withthe Total Ozone Mapping Spectrometer (TOMS) on the same day.The differences between the two ranged from a few percent points to more than 20%, and they increased when a small wavelength deviation in the spectrographoccurred due to the aircraft vibration.Excluding the error due to thiswavelength deviation, instrumental and systematic errors were estimatedto be less than 10%, demonstrating that this airborne measurement withthe spectrograph and the developed fitting method could evaluate the ozonecolumn amount with a good accuracy.
机译：根据2002年1月在日本南部太平洋上空飞行器上的简单光谱仪测量的太阳向后散射光谱评估了臭氧的斜柱量，并开发了一种基于贝叶斯统计优化的最小二乘拟合方法进行评估，并采用随机拟合误差约为2.4％。将评估的斜柱臭氧量与根据同一天用总臭氧图谱仪（TOMS）测量的总臭氧数据计算得出的斜率进行比较，两者之间的差异在几个百分点到20％以上，并且增加了当由于飞机振动而在光谱仪中出现较小的波长偏差时，排除由该波长偏差引起的误差，仪器和系统误差估计小于10％，这表明使用该光谱仪进行的机载测量和开发的拟合方法可以评估臭氧柱准确度很高。

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