Multi-angle lidar sensing of traffic aerosol in Manila
College
College of Science
Department/Unit
Physics
Document Type
Conference Proceeding
Source Title
European Space Agency, (Special Publication) ESA SP
Volume
1
Issue
561
First Page
545
Last Page
548
Publication Date
6-1-2004
Abstract
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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Recommended Citation
Galvez, M. D., Vallar, E. A., Bangsal, E. B., Macalalad, E. P., & Roman, T. A. (2004). Multi-angle lidar sensing of traffic aerosol in Manila. European Space Agency, (Special Publication) ESA SP, 1 (561), 545-548. Retrieved from https://animorepository.dlsu.edu.ph/faculty_research/3612
Disciplines
Physics
Keywords
Aerosols—Remote sensing; Backscattering; Nitrogen oxides--Philippines--Manila
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