Multi-angle lidar sensing of traffic aerosol in Manila

Maria Cecilia D. Galvez; Edgar A. Vallar; Eric B. Bangsal; Ernest P. Macalalad; Tanglaw A. Roman

Multi-angle lidar sensing of traffic aerosol in Manila

Maria Cecilia D. Galvez, Edgar A. Vallar, Eric B. Bangsal, Ernest P. Macalalad, Tanglaw A. Roman

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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.

Original language	English
Pages (from-to)	545-548
Number of pages	4
Journal	European Space Agency, (Special Publication) ESA SP
Volume	561
Publication status	Published - Jun 2004
Externally published	Yes

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title = "Multi-angle lidar sensing of traffic aerosol in Manila",

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.",

author = "Galvez, {Maria Cecilia D.} and Vallar, {Edgar A.} and Bangsal, {Eric B.} and Macalalad, {Ernest P.} and Roman, {Tanglaw A.}",

year = "2004",

month = jun,

language = "English",

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pages = "545--548",

journal = "European Space Agency, (Special Publication) ESA SP",

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T1 - Multi-angle lidar sensing of traffic aerosol in Manila

AU - Galvez, Maria Cecilia D.

AU - Vallar, Edgar A.

AU - Bangsal, Eric B.

AU - Macalalad, Ernest P.

AU - Roman, Tanglaw A.

PY - 2004/6

Y1 - 2004/6

N2 - 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.

AB - 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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M3 - Article

AN - SCOPUS:3142556386

SN - 0379-6566

VL - 561

SP - 545

EP - 548

JO - European Space Agency, (Special Publication) ESA SP

JF - European Space Agency, (Special Publication) ESA SP

ER -

Multi-angle lidar sensing of traffic aerosol in Manila

Abstract

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