Digital visibility map during haze occurrence in Malaysia

Masitah, Abdul Lateh (2014) Digital visibility map during haze occurrence in Malaysia. Project Report. UTeM. (Submitted)

Text DIGITAL VISIBILITY MAP DURING HAZE OCCURRENCE IN MALAYSIA.pdf Download (621kB)

Abstract

MODIS satellite data in 2005 were used to determine atmospheric visibility during haze episode in Malaysia. Initially, haze measurements (in term of atmospheric visibility) were taken from fourteen air pollution stations in Peninsular Malaysia. Band 3 of MODIS were converted from digital numbers (DNs) to reflectance before undergoing geometric correction. The relationship between the reflectance and the corresponding visibilities for all fourteen air pollution were carried out using regression analysis. The power regression model was chosen as the best model for this project and was used to map the visibility within the MODIS data using density slicing technique. Multi-temporal analysis was also performed to map the visibility within the data from different dates. The results of this project indicate that remote sensing technique using MODIS bands 3 was able to map visibility spatially during the haze occurence throughout the study areas.

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