被动多轴差分吸收光谱技术监测O4斜柱浓度误差修正方法研究

大气与环境光学学报 ›› 2012, Vol. ›› Issue (2): 116-123.

被动多轴差分吸收光谱技术监测O4斜柱浓度误差修正方法研究

周海金1,2, 刘文清2 ,司福祺2, 谢品华2 ,窦科2

（1 中国科学技术大学精密机械与精密仪器系, 安徽合肥 230026；
2 中科院安徽光学精密机械研究所中国科学院环境光学与技术重点实验室安徽合肥 230031）

出版日期:2012-03-28 发布日期:2012-03-29
通讯作者: 周海金(1986-)，男，山东人，博士研究生，主要从事差分吸收光谱技术研究。 E-mail:hjzhou@aiofm.ac.cn
作者简介:周海金(1986-)，男，山东人，博士研究生，主要从事差分吸收光谱技术研究。
基金资助:
国家自然科学基金（40805015）、安徽省优秀青年科技基金（10040606Y28)资助

O4 Slant Column Density Measurement and Error Correcting Using Multi Axis Differential Optical Absorption Spectroscopy

ZHOU Hai-jin1,2, Liu Wen-qing2, SI Fu-qi2, XIE Pin-hua2, DOU Ke2

(1 Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230026,China;
2 Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China)

Published:2012-03-28 Online:2012-03-29

摘要/Abstract

摘要：

O4斜柱浓度的准确获取，对气溶胶廓线反演具有重要意义。介绍了基于被动多轴差分吸收光谱仪（MAX-DOAS）监测O4斜柱浓度的误差修正方法，用于准确获取O4斜柱浓度。通过对比30度仰角O4斜柱浓度MAX-DOAS测量结果和大气辐射传输模型模拟结果，获得修正系数，利用修正系数修正各个角度的斜柱浓度值，消除O4吸收截面不准确造成的反演结果误差，提高了O4斜柱浓度精度。研究方法应用于合肥地区O4斜柱浓度的准确监测，为下一步气溶胶廓线精确反演提供了数据支持。

关键词: 被动多轴差分吸收光谱技术, O4斜柱浓度, 气溶胶廓线, 吸收截面

Abstract:

Precise measurement of O4 slant column density(SCD) is meaningful for aerosol profile retrieval. Error correcting methods of O4 SCD measured with multi axis differential optical absorption spectroscopy(MAX-DOAS) is presented. Correcting factor is calculated by comparing O4 SCD measurement result of 30 degree and simulation result through radiative transfer model(RTM). This factor is used to correct SCDs of each elevation angle, to remove the retrieval error caused by O4 cross section absolute error and improve the SCDs precision. The result is applied to O4 SCD measurement at Hefei, and provides a possibility for aerosol profile retrieval of next step.

Key words: multi axis differential optical absorption spectroscopy; O4 slant column density; aerosol profile; cross section

周海金刘文清司福祺谢品华窦科. 被动多轴差分吸收光谱技术监测O4斜柱浓度误差修正方法研究[J]. 大气与环境光学学报, 2012, (2): 116-123.

ZHOU Hai-Jin, LIU Wen-Qing, SI Fu-Qi, XIE Pin-Hua, DOU Ke. O4 Slant Column Density Measurement and Error Correcting Using Multi Axis Differential Optical Absorption Spectroscopy[J]. Journal of Atmospheric and Environmental Optics, 2012, (2): 116-123.

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