Impacts of Biomass Burning Emissions on Tropospheric NO2 Vertical Column Density over Continental Southeast Asia
The behavior of tropospheric NO2 vertical column density (VCD) over continental Southeast Asia (Cambodia, Laos, Myanmar, Thailand, and Vietnam) was systematically analyzed using observations from the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) and a regional chemical transport model (CTM) during 2003–2008. NO2 VCD over continental Southeast Asia showed a distinctive large peak from winter (December) to early spring (April). The regional CTM was configured with anthropogenic emissions taken from the Regional Emission inventory in Asia (REAS) version 2.1 and biomass burning emissions taken from the Global Fire Emissions Database (GFED) version 3.1. Overall, the model could reproduce the NO2 VCD observed by space-borne sensors. A mismatch between satellite observations and the regional CTM was found only in January over Cambodia. A likely reason for this mismatch was diurnal variation in biomass burning emissions. During the analysis period, the largest biomass burning event was reported from December 2003 to April 2004, and a sensitivity analysis was conducted by omitting the biomass burning emissions in the CTM. It was found that the seasonal variations of NO2 VCD, with the peak during winter to early spring, were caused by biomass burning emissions in all countries in continental Southeast Asia. The contribution of biomass burning emissions to NO2 VCD over continental Southeast Asia was an average of 28% during this period and a maximum of 58% in March 2004.
KeywordsBiomass burning emissions NO2 SCIAMACHY Regional transport model Southeast Asia
We thank Dr. Krishna P. Vadrevu, NASA Marshall Space Flight Center, Huntsville, Alabama, USA, for inviting us to contribute this article. We acknowledge the free use of tropospheric NO2 column data from the SCIAMACHY sensor (www.temis.nl). This work was partly supported by the Global Environment Research Fund (No. S-12) of the Ministry of the Environment, Japan.
- Boersma KF, Eskes HJ, Dirksen RJ, van der A RJ, Veefkind JP, Stammes P, Huijnen V, Kleipool QL, Sneep M, Claas J, Leitao J, Richter A, Zhou Y, Brunner D (2011) An improved tropospheric NO2 column retrieval algorithm for the Ozone Monitoring Instrument. Atmos Meas Tech 4:1905–1928CrossRefGoogle Scholar
- EANET (2014) Acid Deposition Monitoring Network in East Asia, Data Report. www.eanet.asia/product/datarep13/datarep13.pdf
- Itahashi S, Uno I, Yumimoto K, Irie H, Osada K, Ogata K, Fukushima H, Wang Z, Ohara T (2012) Interannual variation in the fine-mode MODIS aerosol optical depth and its relationship to the changes in sulfur dioxide emissions in China between 2000 and 2010. Atmos Chem Phys 12:2631–2640CrossRefGoogle Scholar
- Lamsal LN, Martin RV, Padmanabhan A, van Donkelaar A, Zhang Q, Sioris CE, Chance K, Kurosu TP, Newchurch MJ (2011) Application of satellite observations for timely updates to global anthropogenic NOx emission inventory. Geophys Res Lett 38:L05810. https://doi.org/10.1029/2010GL046476 CrossRefGoogle Scholar
- Tsay S-C, Hsu NC, Lau WK-M (2013) From BASE-ASIA toward 7-SEAS: 2013. A satellite-surface perspective of boreal spring biomass-burning aerosols and clouds in Southeast Asia, Atmos. Environment 78:20–34Google Scholar
- Uno I, He Y, Ohara T, Yamaji K, Kurokawa J, Katayama M, Wang Z, Noguchi K, Hayashida S, Richter A, Burrows JP (2007) Systematic analysis of interannual and seasonal variations of model-simulated tropospheric NO2 in Asia and comparison with GOME-satellite data. Atmos Chem Phys 7:1671–1681CrossRefGoogle Scholar
- Vadrevu KP, Justice CO (2011) Vegetation fires in the Asian region: satellite observational needs and priorities. Global Environ Res 15:65–76Google Scholar
- Vadrevu KP, Ellicott E, Badarinath KVS, Vermote E (2011) MODIS derived fire characteristics and aerosol optical depth variations during the agricultural residue burning season, north India. Environ Pollut 159(6):1560-1569Google Scholar
- Vay SA, Choi Y, Vadrevu KP, Blake DR, Tyler SC, Wisthaler A, Hecobian A, Kondo Y, Diskin GS, Sachse GW, Woo JH (2011) Patterns of CO2 and radiocarbon across high northern latitudes during International Polar Year 2008. J Geophys Res Atmos 116(D14)Google Scholar