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Validation of the ORA spatial inversion algorithm with respect to the Stratospheric Aerosol and Gas Experiment II data

机译:关于平流层气溶胶和天然气实验II数据的ORA空间反演算法的验证

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We present the results of a comparison of the total extinction altitude profiles measured at the same time and at same location by the ORA (Occultation Radiometer) and Stratospheric Aerosol and Gas Experiment II solar occultation experiments at three different wavelengths. A series of 25 events for which the grazing points of both experiments lie within a 2° window has been analyzed. The mean relative differences observed over the altitude range 15-45 km are -8.4%, 1.6%, and 3% for the three channels (0.385, 0.6, and 1.02 μm). Some systematic degradation occurs below 20 km (as the result of signal saturation and possible cloud interference) and above 40 km (low absorption). The fair general agreement between the extinction profiles obtained by two different instruments enhances our confidence in the results of the ORA experiment and of the recently developed vertical inversion algorithm applied to real data.
机译:我们介绍了在三个不同波长下通过ORA(掩星辐射计)和平流层气溶胶和气体实验II太阳掩星实验同时和在同一位置测得的总灭绝高度剖面的比较结果。已分析了两个实验的放牧点均位于2°窗口内的一系列25个事件。对于三个通道(0.385、0.6和1.02μm),在15-45 km的海拔范围内观察到的平均相对差异为-8.4%,1.6%和3%。在20 km以下(由于信号饱和和可能的云干扰)和40 km以上(低吸收)会发生一些系统性退化。通过两种不同的仪器获得的消光剖面之间的一般共识,增强了我们对ORA实验结果以及最近开发的应用于真实数据的垂直反演算法的信心。

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