| 光谱学与光谱分析 |
|
|
|
|
|
| Improving Accumulation-Mode Fraction Based on Spectral Aerosol Optical Depth in Beijing |
| ZHANG Ying1, 2, LI Zheng-qiang1*, WANG Yan1, LI Kai-tao1, 2, LI Dong-hui1, 2, ZHANG Yu-huan1, 2, WEI Peng1,2 WANG Ling1, Lü Yang1 |
1. Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing 100101, China
2. University of Chinese Academy of Sciences, Beijing 100049, China |
|
|
|
|
Abstract In the present study, the authors put forward a parameterization method of correcting fine-mode Angstrom index with aerosol optical depth and volume distribution of aerosol derived from AERONET in Beijing over 2011. The parameterization method is coupled with aerosol optical depth spectral deconvolution algorithm to improve the accuracy of accumulation-mode fraction. The errors of estimated AMF are derived from underestimate of fine-mode Angstrom index errors. We calculate and simulate the extreme values of fine-mode Angstrom index, getting constraint conditions, and then establish the extreme values correction method. Results from sensitivity test suggest that extreme values of fine-mode Angstrom index are constrained in the reasonable range. Fine-mode Angstrom index and AMF are sensitive to normalized volume distribution of aerosol, ranging from 0.662 to 2.849 and from 0.08 to 0.84 due to different distribution. Mean deviation of accumulation-mode fraction is reduced from 0.072 to 0.044, and the difference is 38.89%, especially in winter and summer. Improving computational accuracy of accumulation-mode fraction can enhance that of anthropogenic aerosol optical thickness, and it has important significance of anthropogenic aerosol direct radiation force estimation and environmental quality assessment.
|
|
Received: 2013-01-28
Accepted: 2013-04-16
|
|
|
|
Corresponding Authors:
LI Zheng-qiang
E-mail: lizq@irsa.ac.cn
|
|
[1] IPCC. Summary for Policymakers, in: Climate Chang 2007: Synthesis Report, Contribution of Working Groups Ⅰ, Ⅱ and Ⅲ to the Fourth Assessment Report of IPCC, 2007. 38.
[2] Li Z, Xia X A, Cribb M，et al. Journal Geophysical Research, 2007, 112: D22S01.
[3] Li Z, Lee K H, Wang Y, et al. Journal Geophysical Research, 2010, 115: D00K18.
[4] Xia X, Li Z, Holben B，et al. Journal Geophysical Research, 2007, 112: D22S12.
[5] Xia X, Li Z, Wang P, et al. Journal Geophysical Research, 2007, 112: D22S10.
[6] Cheng T T, Liu Y, Lu D R, et al. Atmospheric Environment, 2006, 40: 2169.
[7] Xu J, Bergin M H, Greenwald R, et al. Journal Geophysical Research, 2003, 108(D2): 4060.
[8] Chung C E，Ramanathan V, Kim D，et al. Journal Geophysical Research, 2005, 110: D24207.
[9] Matsui T，Pielke R A. Geophysical Research Letters, 2006, 33: L11813.
[10] Zhao Tom X P, Yu H, Laszlo I, et al. Journal of Quantitative Spectroscopy & Radiative Transfer, 2008, 109(7): 1162.
[11] Quass J, Boucher O, Bellouin N，et al. Journal Geophysical Research, 2008, 113: D05204.
[12] Kaufman Y J, Boucher O，Tanre D，et al. Geophysical Research Letters, 2005, 32: L17804.
[13] Christopher S A, Zhang J L，Kaufman Y J，et al. Geophysical Research Letters, 2006, 33: L15816.
[14] Bellouin N, Boucher O, Haywood J，et al. Nature, 2005, 438: doi:10.1038/nature04348.
[15] Bellouin N, Jones A, Haywood J, et al. Journal Geophysical Research, 2008, 113: D10205.
[16] Tanre D, Kaufman Y J, Herman M，et al. Journal Geophysical Research, 1997, 102(D14): 16971.
[17] Yu H, Chin M，Remer L A，et al. Journal Geophysical Research, 2009, 114: D10206.
[18] O’Neill N，Eck T F, Holben B N, et al. Journal Geophysical Research, 2001, 106: 9787.
[19] O’Neill N, Dubovik O, Eck T F. Applied Optics, 2001, 40(15)：2368.
[20] O’Neill N, Eck T F, Smirnov A, et al. Journal Geophysical Research, 2003, 108(D17): 4559.
[21] O’Neill N, Eck T F, Smirnov A, et al. Spectral Deconvolution Algorithm (SDA) Technical Memo, 2007.
[22] Levy R C, Remer L A，Dubovik O. Journal Geophysical Research, 2007, 112: D13210.
[23] Oleg Dubovik, Brent Holben, Thomas F E，et al. Journal of the Atmospheric Science, 2002, 59: 590.
[24] YAN Han, GAO Hui-wang, YAO Xiao-hong, et al(闫 涵, 高会旺, 姚小红，等). Climatic and Environmental Research(气候与环境研究), 2012, 17(2): 205.
[25] CHEN Yi-zhen, CHAI Fa-he, WEI Qiang(陈义珍, 柴发合, 魏 强). Journal of Safety and Environment(安全与环境学报), 2006, 6(1): 80.
[26] HU Min, LIU Shang, WU Zhi-jun, et al(胡 敏，刘 尚，吴志军，等). Environmental Science(环境科学), 2006, 27(11): 2293. |
| [1] |
CHEN Jie1, 2, 3, QIAN Xian-mei1, 3, LIU Qiang1, 3*, ZHENG Jian-jie1, 2, 3, ZHU Wen-yue1, 3, LI Xue-bin1, 3. Research on Optical Absorption Characteristics of Atmospheric Aerosols at 1 064 nm Wavelength[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2020, 40(10): 2989-2995. |
| [2] |
LIU Qiang1, 2, 3, NIU Ming-sheng3, WANG Gui-shi3, CAO Zhen-song2, LIU Kun3, CHEN Wei-dong3, 4, GAO Xiao-ming2,3*. Development of a Photoacoustic Spectroscopy System for the Measurement of Absorption Coefficient of Atmospheric Aerosols [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(07): 1729-1733. |
| [3] |
CHI Ru-li1,2, WU De-cheng1, LIU Bo1, ZHOU Jun1 . Dual-Wavelength Mie Lidar Observations of Tropospheric Aerosols [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(06): 1468-1472. |
|
|
|
|
