Dongshang Yang, Yi Zeng, Liang Xi, Haijin Zhou, Xiaohan Qiu, Yuhan Luo, Fuqi Si, Wenqing Liu. Analysis of the Emission Flux of Pollution Source NOx Based on Synchronous Observation of Airborne and Vehicular Differential Optical Absorption Spectroscopy Technique[J]. Acta Optica Sinica, 2020, 40(5): 0501002
- Acta Optica Sinica
- Vol. 40, Issue 5, 0501002 (2020)
Fig. 1. Schematic of vehicle and airborne detection
Fig. 2. Experimental detection area
Fig. 3. Flowchart of spectrum collection
Fig. 4. DOAS fitting drawing. (a) Measurement spectral structure; (b) NO2 fitting differential absorption optical depth; (c) fitting residuals
Fig. 5. DOAS detects NO2 concentration distribution. (a) Vehicular detection concentration distribution; (b) airborne detection concentration distribution; (c) vehicular detection concentration distribution in power plant; (d) vehicular detection concentration distribution in steel mills
Fig. 6. Correlation between airborne and vehicular measurements of NO2 concentrations
Fig. 7. Diagram of wind speed and wind direction of observed area. (a) Wind direction of experimental area; (b) real-time wind speed
Fig. 8. Diagram of NO2 column density attenuation change
|
Table 1. Parameters of vehicle DOAS retrieval NO2 spectrum
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20