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首页> 外文期刊>Atmospheric chemistry and physics >Comparison of high-latitude line-of-sight ozone column density with derived ozone fields and the effects of horizontal inhomogeneity
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Comparison of high-latitude line-of-sight ozone column density with derived ozone fields and the effects of horizontal inhomogeneity

机译：高纬度视距臭氧柱密度与导出的臭氧场的比较以及水平非均匀性的影响

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摘要

Extensive ozone measurements were made during the second SAGE III Ozone Loss andValidation Experiment (SOLVE II). We compare high-latitude line-of-sight (LOS)slant column ozone measurements from the NASA DC-8 to ozone simulated by forwardintegration of measurement-derived ozone fields constructed both with andwithout the assumption of horizontal homogeneity. The average bias and rmserror of the simulations assuming homogeneity are relatively small (−6 and10%, respectively) in comparison to the LOS measurements. The comparisonimproves significantly (−2% bias; 8% rms error) using forward integrationsof three-dimensional proxy ozone fields reconstructed from potentialvorticity-O3 correlations. The comparisons provide additional verificationof the proxy fields and quantify the influence of large-scale ozoneinhomogeneity. The spatial inhomogeneity of the atmosphere is a source of errorin the retrieval of trace gas vertical profiles and column abundance from LOSmeasurements, as well as a complicating factor in intercomparisons that includeLOS measurements at large solar zenith angles.
机译：在第二次SAGE III臭氧损失和验证实验（SOLVE II）中进行了广泛的臭氧测量。我们比较了NASA DC-8的高纬度斜线臭氧测量值与通过水平合并均质假设而构建的基于测量的臭氧场的正向积分模拟的臭氧。与LOS测量相比，假设同质性的模拟的平均偏差和均方根误差相对较小（分别为-6和10％）。使用从势旋度-O 3 关联重建的三维替代臭氧场的正向积分，该比较显着改善了（−2％偏差; 8％rms误差）。这些比较为代理领域提供了额外的验证，并量化了大规模臭氧非均质性的影响。大气的空间不均匀性是从LOS测量中检索痕量气体垂直剖面和柱丰度时的误差来源，也是包括在大太阳天顶角下进行LOS测量的比对中的复杂因素。

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