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Proceedings Paper

The relationship between air pollution and satellite data from OCTS
Author(s): H. S. Lim; M. Z. MatJafri; K. Abdullah; N. M. Saleh; C. J. Wong
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Paper Abstract

Air quality is a major concern in many large cities of the world. This paper studies the relationship between particulate matter of size less than 10-micron meter (PM10) and satellite observation from OCTS. The objective of this study is to map the PM10 distribution in Peninsular Malaysia using visible and thermal bands data. The in-situ PM10 measurements were collected simultaneously with the acquisition of the satellite image. The reflectance values in the visible and digital numbers in the thermal bands were extracted corresponding to the ground-truth locations and later used for algorithm regression analysis of the air quality. A developed algorithm was used to predict the PM10 values from the satellite image. The novelty of this study is the algorithm uses a combination of reflectance measurements from the visible bands and the corresponding apparent temperature values of the thermal band. This study investigates the relationship between the extracted OCTS signals and the PM10 values. The reflectance at 3.55-3.88 micro meter is computed after correction for the emission by the atmosphere. The surface emissivity values were computed based on the NDVI values. The developed algorithm produced a high correlation between the measured and estimated PM10 values of 0.97. Finally, a PM10 map was generated over Peninsular Malaysia using the proposed algorithm. This study has indicated the potential of OCTS satellite data for air quality study.

Paper Details

Date Published: 4 May 2006
PDF: 14 pages
Proc. SPIE 6233, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XII, 62331O (4 May 2006); doi: 10.1117/12.665429
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)
C. J. Wong, Univ. Sains Malaysia (Malaysia)

Published in SPIE Proceedings Vol. 6233:
Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XII
Sylvia S. Shen; Paul E. Lewis, Editor(s)

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