Retrieval of Aerosol Properties for Fine/Coarse Mode Aerosol Mixtures over Beijing from PARASOL Measurements
Abstract
:1. Introduction
2. Retrieval Principle and Method
2.1. The Assumption of the Spectral Reflectance Shape Invariance Principle
2.2. Sensitivity Study of the Assumption
2.3. Aerosol Retrieval Process
3. Data Processing
3.1. Study Area Description
3.2. Aerosol Models
Aerosol Mode | Fine Mode | Coarse Mode |
---|---|---|
Rv (µm) | 0.182 | 2.705 |
σ | 0.508 | 0.610 |
Effective radius (µm) | 0.160 | 2.225 |
Real refractive index | B: 1.484; G:1.489; R: 1.497; N:1.506 | |
Imaginary refractive index | B:0.0121; G:0.0107; R:0.0086; N: 0.0092 | |
FMVW | 20%, 30%, 40%, 50%, 60% |
4. Validation and Discussion
Season | Date | Qmean | |||||
---|---|---|---|---|---|---|---|
Spring | 03/03/2006 | 0.850 | 0.781 | 0.92 | 45% | 30% | 17.8% |
06/03/2006 | 0.830 | 0.549 | 0.63 | 22% | 20% | 14.8% | |
26/03/2008 | 0.725 | 0.235 | 0.42 | 16% | 30% | 78.7% | |
05/03/2009 | 0.755 | 0.090 | 0.07 | 16% | 20% | −22.2% | |
17/05/2009 | 0.805 | 0.278 | 0.39 | 16% | 20% | 40.3% | |
Summer | 17/06/2006 | 0.740 | 0.132 | 0.09 | 18% | 20% | −31.8% |
04/06/2007 | 0.745 | 0.542 | 0.73 | 31% | 30% | 34.7% | |
02/06/2009 | 0.780 | 0.094 | 0.13 | 14% | 20% | 38.3% | |
Autumn | 21/10/2005 | 0.725 | 0.213 | 0.29 | 25% | 50% | 36.2% |
30/10/2005 | 0.595 | 0.069 | 0.15 | 28% | 60% | 117.4% | |
20/11/2005 | 0.770 | 0.169 | 0.24 | 39% | 60% | 42.0% | |
29/09/2006 | 0.790 | 0.429 | 0.32 | 30% | 50% | −25.4% | |
05/10/2009 | 0.770 | 0.398 | 0.49 | 44% | 40% | 23.1% | |
06/10/2009 | 0.845 | 0.493 | 0.54 | 40% | 30% | 9.5% | |
22/10/2009 | 0.775 | 0.256 | 0.28 | 25% | 20% | 9.4% | |
26/10/2009 | 0.735 | 0.111 | 0.09 | 30% | 20% | −18.9% | |
Winter | 04/12/2005 | 0.710 | 0.182 | 0.11 | 6% | 20% | −39.6% |
08/12/2005 | 0.795 | 0.477 | 0.42 | 51% | 40% | −11.9% | |
18/02/2006 | 0.830 | 0.391 | 0.18 | 28% | 30% | −54.0% | |
25/02/2006 | 0.805 | 0.273 | 0.30 | 15% | 20% | 9.9% | |
28/11/2007 | 0.785 | 0.575 | 0.61 | 60% | 40% | 6.1% | |
30/11/2008 | 0.745 | 0.225 | 0.30 | 54% | 30% | 33.3% |
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Wang, S.; Fang, L.; Zhang, X.; Wang, W. Retrieval of Aerosol Properties for Fine/Coarse Mode Aerosol Mixtures over Beijing from PARASOL Measurements. Remote Sens. 2015, 7, 9311-9324. https://doi.org/10.3390/rs70709311
Wang S, Fang L, Zhang X, Wang W. Retrieval of Aerosol Properties for Fine/Coarse Mode Aerosol Mixtures over Beijing from PARASOL Measurements. Remote Sensing. 2015; 7(7):9311-9324. https://doi.org/10.3390/rs70709311
Chicago/Turabian StyleWang, Shupeng, Li Fang, Xingying Zhang, and Weihe Wang. 2015. "Retrieval of Aerosol Properties for Fine/Coarse Mode Aerosol Mixtures over Beijing from PARASOL Measurements" Remote Sensing 7, no. 7: 9311-9324. https://doi.org/10.3390/rs70709311