P. F. Orte, E. Luccini, E. Wolfram, F. Nollas, J. Pallotta, R. D’Elia, G. Carbajal, N. Mbatha, N. Hlongwane
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引用次数: 0
摘要
通过臭氧监测仪器(OMI/NASA EOSAura)测量的总臭氧柱(TOC)分别与2004-2019年和2008-02/2020年期间使用多布森和SAOZ仪器进行的地面观测进行了比较。利用差分光学吸收光谱算法(overpass OMI- doas)反演OMI数据。用于分析的四个地面站点位于南半球34°S至54°S的亚极地和亚热带纬度，位于阿根廷城市布宜诺斯艾利斯(34.58°S, 58.36°W;25m a.s.l.)， Comodoro Rivadavia(45.86°S, 67.50°W;46 m a.s.l.)， Río Gallegos(51.60°S, 69.30°W;海拔72 m)和乌斯怀亚(54.80°S, 68.30°W;14 m a.s.l.)。线性回归分析显示，各位点的相关值均大于0.90。OMI测量结果显示，与Dobson仪器相比，高估不到4%，而与SAOZ仪器相比，低估的程度非常低，不到1%。
Comparison of OMI-DOAS total ozone column with ground-based measurements in Argentina
Total ozone column (TOC) measurements through the Ozone Monitoring Instrument (OMI/NASA EOSAura) are compared with ground-based observations made using Dobson and SAOZ instruments for the period 2004–2019 and 2008–02/2020, respectively. The OMI data were inverted using the Differential Optical Absorption Spectroscopy algorithm (overpass OMI-DOAS). The four ground-based sites used for the analysis are located in subpolar and subtropical latitudes spanning from 34°S to 54°S in the Southern Hemisphere, in the Argentine cities of Buenos Aires (34.58°S, 58.36°W; 25 m a.s.l.), Comodoro Rivadavia (45.86°S, 67.50°W; 46 m a.s.l.), Río Gallegos (51.60°S, 69.30°W; 72 m a.s.l.) and Ushuaia (54.80°S, 68.30°W; 14 m a.s.l.). The linear regression analyzes showed correlation values greater than 0.90 for all sites. The OMI measurements revealed an overestimation of less than 4 % with respect to the Dobson instruments, while the comparison with the SAOZ instrument presented a very low underestimation of less than 1 %.
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