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研究了基于机载多角度观测方式反演NO2垂直廓线的灵敏度, 利用计算的权重因子和平均核分析了不同波长、不同观测角度、 不同地表反照率、不同气溶胶模式、不同高度对廓线反演灵敏度的影响. 结果表明, 中心波长在370 nm的紫外波段的平均核比中心波长在500 nm的可见波段垂直分辨率更高, 更有利于廓线反演; 向上观测角度的测量结果中没有明显的廓线信息, 而向下观测角度的测量结果包含更多的廓线信息; 地表反照率对廓线反演没有明显影响; 高气溶胶模式使得廓线反演的灵敏度升高; 较低的飞行高度计算的平均核差异不明显, 不利于廓线信息的反演.
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关键词:
- 多轴差分吸收光谱技术 /
- 机载 /
- 垂直廓线 /
- 灵敏度
The retrieval sensitivity of NO2 profile based on airborne muti-axis observation is studied, and the influences of different wavelengths, different view angles, different surface albedos, different aerosol modes, and different altitude are evaluated by calculating the weighting function and average kernels. The results show that higher vertical resolution is obtained at 370 nm than at 500 nm for averaging kernels, more conducive to profile retrieval; not too much profile information is found in upper view angles, while more profile information is achieved in downward looking angles; surface albedos have no obvious influence on profile retrieval; high aerosol mode increases the sensitivity of profile retrieval; the averaging kernels at low flight attitude have no obvious differences in different altitudes, nor are they conducive to the profile retrieval.-
Keywords:
- multi axis DOAS /
- airborne /
- vertical profile /
- sensitivity
[1] McElroy C T, McLinden C A, McConnell J C 1999 Nature 397 338
[2] Pfeilsticker K, Platt U 1994 Geophys. Res. Lett. 21 1375
[3] Andrea P, Fabrizio R, Giorgio G, Daniele B, Ubaldo B, Ivan K, Alexey O 2002 Appl. Opt. 41 5593
[4] Xu J, Xie P H, Si F Q, Li A, Liu W Q 2002 Acta Phys. Sin. 61 024204 (in Chinese) [徐晋, 谢品华, 司福祺, 李昂, 刘文清2012 61 024204]
[5] Melamed M L, Solomon S, Daniel J S, Langford A O, Portmann R W, Ryerson T B, Nicks D K, McKeen S A 2003 J. Environ. Monit. 5 29
[6] Rodgers C D 2000 Series on Atmospheric, Ocean and Planetary Physics, (Vol. 2) (London: World Scientific Publishing)
[7] Rodgers C D 1990 J. Geophys. Res. 95 5587
[8] Rozanov A, Rozanov V, Burrows J P 2001 J. Quant. Spectrosc. Radiat. Transfer 69 491
[9] Richter A 2003 Technical Report, University Bremen
[10] Shettle E P, Fenn R W 1979 Technical Report, AFGL-TR-79-0214, Project 7670, Air Force Geoph Lab. Hanscom AFB, MA
[11] Kneizys F X, Shettle E P, Abreu L W, Chetwynd J H 1986 Technical report, AFGL-TR-88-0177, (NTIS AD A206773), Air Force Geophysics Laboratory AFGL, Hanscom AFB, MA
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[1] McElroy C T, McLinden C A, McConnell J C 1999 Nature 397 338
[2] Pfeilsticker K, Platt U 1994 Geophys. Res. Lett. 21 1375
[3] Andrea P, Fabrizio R, Giorgio G, Daniele B, Ubaldo B, Ivan K, Alexey O 2002 Appl. Opt. 41 5593
[4] Xu J, Xie P H, Si F Q, Li A, Liu W Q 2002 Acta Phys. Sin. 61 024204 (in Chinese) [徐晋, 谢品华, 司福祺, 李昂, 刘文清2012 61 024204]
[5] Melamed M L, Solomon S, Daniel J S, Langford A O, Portmann R W, Ryerson T B, Nicks D K, McKeen S A 2003 J. Environ. Monit. 5 29
[6] Rodgers C D 2000 Series on Atmospheric, Ocean and Planetary Physics, (Vol. 2) (London: World Scientific Publishing)
[7] Rodgers C D 1990 J. Geophys. Res. 95 5587
[8] Rozanov A, Rozanov V, Burrows J P 2001 J. Quant. Spectrosc. Radiat. Transfer 69 491
[9] Richter A 2003 Technical Report, University Bremen
[10] Shettle E P, Fenn R W 1979 Technical Report, AFGL-TR-79-0214, Project 7670, Air Force Geoph Lab. Hanscom AFB, MA
[11] Kneizys F X, Shettle E P, Abreu L W, Chetwynd J H 1986 Technical report, AFGL-TR-88-0177, (NTIS AD A206773), Air Force Geophysics Laboratory AFGL, Hanscom AFB, MA
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