BrO vertical distributions from SCIAMACHY limb measurements: comparison of algorithms and retrieval results
BrO vertical distributions from SCIAMACHY limb measurements: comparison of algorithms and retrieval results
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DOI：
10.5194/amt-4-1319-2011
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发表时间：
2011-07
影响因子：
3.8
通讯作者：
A. Rozanov;S. Kühl;A. Doicu;C. McLinden;J. Puķı̄te;H. Bovensmann;J. Burrows;T. Deutschmann;M. Dorf;F. Goutail;K. Grunow;F. Hendrick;M. Hobe;S. Hrechanyy;G. Lichtenberg;K. Pfeilsticker;J. Pommereau;M. Roozendael;F. Stroh;T. Wagner
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文献类型：
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作者：
A. Rozanov;S. Kühl;A. Doicu;C. McLinden;J. Puķı̄te;H. Bovensmann;J. Burrows;T. Deutschmann;M. Dorf;F. Goutail;K. Grunow;F. Hendrick;M. Hobe;S. Hrechanyy;G. Lichtenberg;K. Pfeilsticker;J. Pommereau;M. Roozendael;F. Stroh;T. Wagner
抽象。本研究提出了两个科学和一个业务检索算法，用于获得一氧化溴（BrO）的垂直分布，从观测的散射太阳光进行的SCIAMACHY仪器在临边观察几何。研究首先讨论了所有算法的理论基础，然后对检索灵敏度进行了调查。三种不同的辐射传输模型的模拟，使我们能够分析的前向模型的实施后的反演结果的影响。通过合成检索，我们分析了主要来源的不确定性，如不同的BrO剖面，其温度依赖性，平流层气溶胶。最后，SCIAMACHY BrO剖面反演的可靠性证明了不同算法的结果相互比较和气球观测。
Abstract. This study presents two scientific and one operational retrieval algorithms used to obtain vertical distributions of bromine monoxide (BrO) from observations of the scattered solar light performed by the SCIAMACHY instrument in limb viewing geometry. The study begins with a discussion of the theoretical basis of all algorithms followed by an investigation of the retrieval sensitivity. Simulations with three different radiative transfer models allow us to analyze influence of the forward model implementation upon the retrieval results. By means of synthetic retrievals we analyze major sources of uncertainties in the resulting BrO profiles such as different BrO cross sections, their temperature dependence, and stratospheric aerosols. Finally, the reliability of SCIAMACHY BrO profile retrievals is demonstrated comparing results from different algorithms to each other and to balloon-borne observations.