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Proceedings Paper

Aerosol optical thickness retrieval by using a handheld spectroradiometer over Penang Island, Malaysia
Author(s): H. S. Lim; M. Z. MatJafri; K. Abdullah; N. M. Saleh
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Paper Abstract

Atmospheric components (aerosol and molecules) scatter and absorb solar radiation. This study investigated the used of a handheld spectroradiometer for the retrieval of atmospheric optical thickness (AOT) values over Penang Island derives this period. The objective of this study is to introduce a new technique for retrieval of aerosol optical thickness (AOT) for air quality determination. Measured spectroradiometer data was used to calculate the aerosol optical thickness (AOT) values at the earth surface. The transmittance values were measured using a handheld spectroradiometer over Penang Island. Particulate matters of size less than 2.5 micron (PM2.5) were collected simultaneously with the acquisition of the transmittance measurements. The results of the calculated AOT were used to retrieve the air quality at Penang, Malaysia. The retrieved AOT data were linearly correlated with the particulate matter of less than 2.5 micro meter (PM2.5). An AOT map and PM10 map were generated using interpolation technique. The relationship between AOT and PM10 was investigated and we obtained a linear relationship between these two parameters. Finally, an interpolating technique was used to generate a PM2.5 map over Penang Island.

Paper Details

Date Published: 16 November 2010
PDF: 8 pages
Proc. SPIE 7857, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques, and Applications III, 78571B (16 November 2010); doi: 10.1117/12.869492
Show Author Affiliations
H. S. Lim, Univ. Sains Malaysia (Malaysia)
M. Z. MatJafri, Univ. Sains Malaysia (Malaysia)
K. Abdullah, Univ. Sains Malaysia (Malaysia)
N. M. Saleh, Univ. Sains Malaysia (Malaysia)

Published in SPIE Proceedings Vol. 7857:
Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques, and Applications III
Allen M. Larar; Hyo-Sang Chung; Makoto Suzuki, Editor(s)

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