MODIS derived fire characteristics and aerosol optical depth variations during the agricultural residue burning season, north India

Agricultural residue burning is one of the major causes of greenhouse gas emissions and aerosols in the Indo-Ganges region. In this study, we characterize the fire intensity, seasonality, variability, fire radiative energy (FRE) and aerosol optical depth (AOD) variations during the agricultural resi...

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Bibliographic Details
Published in:Environmental pollution (1987) 2011-06, Vol.159 (6), p.1560-1569
Main Authors: Vadrevu, Krishna Prasad, Ellicott, Evan, Badarinath, K.V.S., Vermote, Eric
Format: Article
Language:English
Subjects:
Aerosol optical depth variations
Aerosols
Aerosols - analysis
Agricultural residues
Agriculture - statistics & numerical data
Air Pollutants - analysis
Air pollution
Air Pollution - statistics & numerical data
air quality
Applied sciences
Argon oxygen decarburizing
Atmospheric pollution
Biomass burning
burning
burning season
Combustion
Combustion and energy production
Earth, ocean, space
energy
Environmental Monitoring - methods
Exact sciences and technology
External geophysics
fire intensity
Fire radiative energy
Fires
fossil fuels
greenhouse gas emissions
greenhouse gases
India
Meteorology
moderate resolution imaging spectroradiometer
Oryza sativa
Particles and aerosols
Pollution
Pollution sources. Measurement results
Residues
rice
Seasons
summer
Triticum aestivum
Wheat
winter
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Summary:Agricultural residue burning is one of the major causes of greenhouse gas emissions and aerosols in the Indo-Ganges region. In this study, we characterize the fire intensity, seasonality, variability, fire radiative energy (FRE) and aerosol optical depth (AOD) variations during the agricultural residue burning season using MODIS data. Fire counts exhibited significant bi-modal activity, with peak occurrences during April–May and October–November corresponding to wheat and rice residue burning episodes. The FRE variations coincided with the amount of residues burnt. The mean AOD (2003–2008) was 0.60 with 0.87 (+1 σ) and 0.32 (−1 σ). The increased AOD during the winter coincided well with the fire counts during rice residue burning season. In contrast, the AOD-fire signal was weak during the summer wheat residue burning and attributed to dust and fossil fuel combustion. Our results highlight the need for ‘full accounting of GHG’s and aerosols’, for addressing the air quality in the study area. ► MODIS data could capture rice and wheat residue burning events. ► The total FRP was high during the rice burning season than the wheat. ► MODIS AOD variations coincided well with rice burning events than wheat. ► AOD values exceeding one suggested intense air pollution. This research work highlights the satellite derived fire products and their potential in characterizing the agricultural residue burning events and air pollution.
ISSN:0269-7491
1873-6424
DOI:10.1016/j.envpol.2011.03.001