title: Analysis of Southeast Asian pollution episode during June 2013 using satellite remote sensing datasets.
abstract: In this study, we assess the intense pollution episode of June 2013, in Riau province, Indonesia from land clearing. We relied on satellite retrievals of aerosols and Carbon monoxide (CO) due to lack of ground measurements. We used both the yearly and daily data for aerosol optical depth (AOD), fine mode fraction (FMF), aerosol absorption optical depth (AAOD) and UV aerosol index (UVAI) for characterizing variations. We found significant enhancement in aerosols and CO during the pollution episode. Compared to mean (2008-2012) June AOD of 0.40, FMF-0.39, AAOD-0.45, UVAI-1.77 and CO of 200 ppbv, June 2013 values reached 0.8, 0.573, 0.672, 1.77 and 978 ppbv respectively. Correlations of fire counts with AAOD and UVAI were stronger compared to AOD and FMF. Results from a trajectory model suggested transport of air masses from Indonesia towards Malaysia, Singapore and southern Thailand. Our results highlight satellite-based mapping and monitoring of pollution episodes in Southeast Asia.
authors.affiliation: Department of Geographical Sciences, University of Maryland College Park, 4321 Hartwick Road, College Park, MD 20740, USA. Electronic address: krisvkp@umd.edu.
authors.forename: Krishna Prasad
authors.initials: KP
authors.lastname: Vadrevu
authors.affiliation: Department of Geographical Sciences, University of Maryland College Park, 4321 Hartwick Road, College Park, MD 20740, USA.
authors.forename: Kristofer
authors.initials: K
authors.lastname: Lasko
authors.affiliation: Department of Geographical Sciences, University of Maryland College Park, 4321 Hartwick Road, College Park, MD 20740, USA.
authors.forename: Louis
authors.initials: L
authors.lastname: Giglio
authors.affiliation: Department of Geographical Sciences, University of Maryland College Park, 4321 Hartwick Road, College Park, MD 20740, USA.
authors.forename: Chris
authors.initials: C
authors.lastname: Justice
mesh_terms: D000336:Aerosols / Q000032:analysis; D000393:Air Pollutants / Q000032:analysis; D000397:Air Pollution / Q000032:analysis / Q000706:statistics & numerical data*; D002248:Carbon Monoxide / Q000032:analysis; D004777:Environment; D004784:Environmental Monitoring / Q000379:methods*; D005390:Fires; D063809:Satellite Imagery; D018531:Spacecraft; D013785:Thailand
chemical_list: D000336:Aerosols; D000393:Air Pollutants; D002248:Carbon Monoxide
keywords: Aerosols; CO; Haze; Indonesia; Southeast Asia