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Preliminary results of the aerosol optical depth retrieval in Johor, Malaysia

Lim, Hui Qi and Kanniah, Kasturi Devi and Shin, Alvin Lau Meng (2014) Preliminary results of the aerosol optical depth retrieval in Johor, Malaysia. 8TH INTERNATIONAL SYMPOSIUM OF THE DIGITAL EARTH (ISDE8), 18 (1). pp. 1-4. ISSN 1755-1315

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Official URL: http://dx.doi.org/10.1088/1755-1315/18/1/012085

Abstract

Monitoring of atmospheric aerosols over the urban area is important as tremendous amounts of pollutants are released by industrial activities and heavy traffic flow. Air quality monitoring by satellite observation provides better spatial coverage, however, detailed aerosol properties retrieval remains a challenge. This is due to the limitation of aerosol retrieval algorithm on high reflectance (bright surface) areas. The aim of this study is to retrieve aerosol optical depth over urban areas of Iskandar Malaysia; the main southern development zone in Johor state, using Moderate Resolution Imaging Spectroradiometer (MODIS) 500m resolution data. One of the important steps is the aerosol optical depth retrieval is to characterise different types of aerosols in the study area. This information will be used to construct a Look Up Table containing the simulated aerosol reflectance and corresponding aerosol optical depth. Thus, in this study we have characterised different aerosol types in the study area using Aerosol Robotic Network (AERONET) data. These data were processed using cluster analysis and the preliminary results show that the area is consisting of coastal urban (65%), polluted urban (27.5%), dust particles (6%) and heavy pollution (1.5%) aerosols.

Item Type:Article
Uncontrolled Keywords:atmospheric aerosols, aerosol robotic network (AERONET) data
Subjects:H Social Sciences > HD Industries. Land use. Labor
Divisions:Geoinformation and Real Estate
ID Code:54573
Deposited By: Haliza Zainal
Deposited On:05 Apr 2016 14:59
Last Modified:12 Sep 2017 16:43

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