Aerosol Properties over Kuching, Sarawak from Satellite and Ground-Based Measurements
The effect of aerosols on the global and regional climate can be understood through an insight into the properties of aerosols. In this article, the optical properties of aerosols were analyzed through the ground-based Aerosol Robotic Network (AERONET) and MODIS satellite data over Kuching city in northwestern Sarawak. This study deals with the optical properties of aerosols: aerosol optical depth (AOD), Angstrom exponent (α), single scattering albedo (SSA), and the asymmetry factor (ASY) during 2011–2012 over Kuching city, Sarawak, Malaysia. The results show that the variability in optical properties of aerosols can be determined by the type of aerosol or the source of the aerosol. In the study area, higher concentrations are encountered due to the presence of aerosol from urban activities, especially during the dry season. While monsoonal rainfall tends to reduce aerosol concentrations by washing aerosols out of the atmosphere, their effect is still significant during the wet season.
KeywordsAerosols Urban areas MODIS Malaysia
The authors thank the PIs for their effort in establishing and maintaining Kuching sites for the provision of AERONET data and are grateful to the MODIS teams at NASA for the provision of satellite data.
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