Estimation of lidar ratios during haze events in Penang, Malaysia

Three haze events occurred in Malaysia during the years of 2014 and 2015. Humidity and visibility parameters are obtained and used to estimate the Lidar ratio (LR) values during these three haze events using the algorithm generated. The possible aerosol types during the haze were also evaluated. The...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 852; no. 1; pp. 12032 - 12037
Main Authors Khor, W Y, Mat Jafri, M Z, Lim, H S
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.05.2017
Subjects
Aerosols
Algorithms
Biomass burning
Electromagnetic absorption
Haze
Lidar
Physics
Visibility
Malaysia
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Summary:Three haze events occurred in Malaysia during the years of 2014 and 2015. Humidity and visibility parameters are obtained and used to estimate the Lidar ratio (LR) values during these three haze events using the algorithm generated. The possible aerosol types during the haze were also evaluated. The haze event that happened from August to October 2015 was the worst among the three cases with a maximum LR value of 177 sr. The LR values also range from 50 sr to 145 sr. The possible aerosol type during the haze events are highly light absorbing particles such as biomass burning aerosols. The LR values are much larger compared to other literature which may be due to overestimation. The assessed LR values are consistent with the changes of the number of hotspots in neighbouring countries during the haze events.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/852/1/012032