Aerosol optical thickness retrieval by using a handheld spectroradiometer over Penang Island, Malaysia

H. S. Lim; M. Z. MatJafri; K. Abdullah; N. M. Saleh

doi:10.1117/12.869492

16 November 2010 Aerosol optical thickness retrieval by using a handheld spectroradiometer over Penang Island, Malaysia

H. S. Lim, M. Z. MatJafri, K. Abdullah, N. M. Saleh

Proceedings Volume 7857, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques, and Applications III; 78571B (2010) https://doi.org/10.1117/12.869492
Event: SPIE Asia-Pacific Remote Sensing, 2010, Incheon, Korea, Republic of

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.

Citation Download Citation

H. S. Lim, M. Z. MatJafri, K. Abdullah, and N. M. Saleh "Aerosol optical thickness retrieval by using a handheld spectroradiometer over Penang Island, Malaysia", Proc. SPIE 7857, Multispectral, Hyperspectral, and Ultraspectral Remote Sensing Technology, Techniques, and Applications III, 78571B (16 November 2010); https://doi.org/10.1117/12.869492

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KEYWORDS

Aerosols

Transmittance

Atmospheric particles

Atmospheric optics

Atmospheric physics

Solar radiation

Atmospheric modeling

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