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An Improved Inventory of Emissions from Biomass Open Burning in Thailand |
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| รหัสดีโอไอ | |
| Title | An Improved Inventory of Emissions from Biomass Open Burning in Thailand |
| Creator | 1. Thanonphat Boonman 2. Agapol Junpen 3. Penwadee Cheewaphongphan 4. Thao Pham 5. Saphawan Wattanakroek 6. Savitri Garivait |
| Publisher | Joint Graduate School of Energy and Environment |
| Publication Year | 2557 |
| Keyword | Forest fire, agricultural burning, Thailand, MODIS-MCD45A1 |
| Abstract | Thailand experiences critical haze pollution from biomass open burning, including forest fires and agricultural burning, especially in the northern part of the country during the dry season running from December to March annually. The application of satellite data for fire-related studies during the past decade in ASEAN helped to improve our understanding of the importance of wildland fires in the region, in terms of location, type of vegetation fires, and associated emission releases. However, high uncertainties persist mainly due to lack of spatially-explicit fuel loads and unreliable burned area estimates both in forestland and cropland subject to burning. In this study, we developed a methodology to improve the determination of burned areas using MODIS-MCD45A1 burned area product by random ground truthing. Investigated vegetation covers tropical deciduous forest, rice paddy, and sugarcane and maize plantations. Fuel loads and combustion completeness factors were collected and reviewed from country-specific literature. The pollutants of interest include carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), nitrous oxide (N2O), fine particulate matter (PM2.5), and black carbon (BC). The obtained results showed that all the ground-truthed burned areas were smaller than those defined using MCD45A1, indicating that adjustment factors specific to each type of land cover should be determined in order to improve the estimation of emissions from biomass burning in Thailand using this satellite information. In addition, it was found that significant adjustments are required for forest burned areas and croplands located in the mountains or terrain with significant slope (>15%). Contributions and trends of forest fires and agricultural burnings in Thailand during 2009-2011were reviewed and assessed using the obtained burned area adjustment factors. A comparison with the global data set, GFEDv3.1, showed that the use of satellite data based only on hotspots detection may lead to a large over-estimation of emissions from biomass open burning. |
| ISBN | 978-616-92228-1-1 |
