Multi-angle lidar sensing of traffic aerosol in Manila
Multi-angle lidar sensing of traffic aerosols was conducted in a very busy Manila area. The backscatter coefficients for 355 nm and 532 nm were calculated from Fernald's inversion method using calibration results retrieved from the slant-path method. An aerosol extinction-to-backscatter ratio o...
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| Main Authors: | , , , , |
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| Format: | text |
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Animo Repository
2004
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| Subjects: | |
| Online Access: | https://animorepository.dlsu.edu.ph/faculty_research/3612 |
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| Institution: | De La Salle University |
| Summary: | Multi-angle lidar sensing of traffic aerosols was conducted in a very busy Manila area. The backscatter coefficients for 355 nm and 532 nm were calculated from Fernald's inversion method using calibration results retrieved from the slant-path method. An aerosol extinction-to-backscatter ratio of 30 sr was assumed in the calculation. Several scans were conducted on 31 July 2003 during peak traffic hours to observe the two-dimensional spatial and temporal distribution of traffic aerosols. The presence of a constant aerosol mass near a busy intersection was observed throughout the scanning period. The calculated backscatter coefficient for these aerosol mass ranged from 3.56×10 -6 m-1sr-1 to 5.01×10-6 m -1sr-1 for 532 nm and 1.76×10-5 m -1sr-1 to 2.02×10-5m-1sr -1 for 355 nm. |
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