Chu W P, McCormick M P
Appl Opt. 1979 May 1;18(9):1404-13. doi: 10.1364/AO.18.001404.
Inversion techniques for the retrieval of stratospheric aerosol, ozone, neutral density, and nitrogen dioxide vertical profiles from numerically simulated spacecraft solar extinction measurements have been analyzed. The analysis is applied toward the space flight mission of the Stratospheric Aerosol and Gas Experiment (SAGE), which will be flown on the Applications Explorer Mission B (AEM-B) spacecraft. The instrument has four radiometric channels located at selected intervals in the 0.38-1.0-,microm wavelength range. The expected retrieval accuracies are deterrrined from inverting simulated data with various experimental errors included. The results from this analysis assuming a horizontally homogeneous atmosphere indicate that aerosol, ozone, and neutral density vertical profiles can be retrieved to an accuracy better than 10% with about 1-km vertical resolution over most of the stratosphere. The results also show that nitrogen dioxide can be inverted to an accuracy of about 25% in the 25-38-km altitude ange. In addition, the effects of horizontally inhomogeneous distributions of aerosol and ozone on the retrieval accuracies are analyzed based on a simple inhomogeneous model of the atmosphere and found that there is only a small perturbation on the inversion accuracies.
已对用于从数值模拟的航天器太阳消光测量中反演平流层气溶胶、臭氧、中性密度和二氧化氮垂直廓线的反演技术进行了分析。该分析应用于平流层气溶胶和气体实验（SAGE）的太空飞行任务，该任务将搭载在应用探索者任务B（AEM - B）航天器上。该仪器有四个辐射测量通道，位于0.38 - 1.0微米波长范围内选定的间隔处。通过对包含各种实验误差的模拟数据进行反演来确定预期的反演精度。在假设大气水平均匀的情况下，该分析结果表明，在平流层的大部分区域，气溶胶、臭氧和中性密度垂直廓线能够以约1千米的垂直分辨率反演至优于10%的精度。结果还表明，在25 - 38千米高度范围内，二氧化氮能够反演至约25%的精度。此外，基于一个简单的大气非均匀模型，分析了气溶胶和臭氧水平非均匀分布对反演精度的影响，发现对反演精度仅有微小扰动。
