Investigation of Tropospheric Ozone Production in Association with Biomass Burning in Southeast Asia

东南亚生物质燃烧对流层臭氧产生的调查

• 批准号: 13480153
• 负责人: KITA Kazuyuki
• 金额: $ 7.87万
• 依托单位: Ibaraki University (2002-2004)The University of Tokyo (2001)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13480153/
• 关键词: ozone; biomass burning; Southeast Asia; El Nino; greenhouse effect; troposphere; エアロソル; 対流圏オゾン; 大気質

Tropospheric ozone is significant for global atmospheric environment because it can damage human health and vegetation including agricultural crops. It also affects climate because is one of significant greenhouse gases. However, the ozone distribution, its budget, and therefore, its influence on the environment have not been fully understood. In this study, the influence of the biomass burning in Southeast Asia on the production of the tropospheric ozone is discussed. This study consists of three parts : (I)ozone variation observed during the BIBLE aircraft observation campaigns and influence of biomass burning in the Indonesian region, (II)ozone increased layers observed during the TRACE-P aircraft observation campaign and influence of biomass burning in the Indochina region, and (III)ozone variation over Indochina observed by an intensive ozonezonde observation and influence of biomass burning in the Indochina region.During BIBLE, mixing ratios of O_3 and its precursor gases (OPG) w … More ere quite low over the tropical Pacific Ocean. In the upper troposphere, OPG gradually increased downwind in eastern and western Indonesia. While O_3 did not increased over Indonesia, it increased by 50 % in the air masses which passed over Indonesia and were observed in Indian Ocean and northern Australia. These results indicate that ozone was produced in the air masses affected by emissions and convection over Indonesia. Average O_3 production rate during transport is estimated to be about 2ppbv/day, being comparable with the photochemical model calculation. These results demonstrate that the convection over Indonesia in association with biomass burning and lightning influenced OPG amount over Indonesia, even when biomass burning was inactive, and that it caused 10-15 ppbv (about 50 %) increase of O_3 over Indian Ocean and northern Australia.During TRACE-P, increase of ozone and OPG was often observed at the altitude around 4 km over western and central Pacific in subtropical latitude at about 20N. Trajectory analyses and collation analyses between OPG and tracers indicate that this increase of ozone and OPG were attributed to the biomass burning in the Indochina region.An intensive ozonesonde observation was carried out at Sri Samrong (17N, 99E), Thailand, between March and June, 2003. Observed ozone mixing ratios generally exceeded 60 ppbv and sometimes exceeded 90 ppbv throughout the troposphere. There was a stable inversion layer at an altitude around 4 km over Thailand during the observation period, indicating that ozone precursors emitted from biomass burning and industrial activities were upwardly transported up to this layer. However, ozone mixing ratios did not show significant variation above and below this layer. Meteorological analyses combined with analyses of aerosol characteristics indicated that biomass burning in Southeast Asia was not only a dominant ozone source, but also the pollutant from South Asia and the transport from the middle latitude contributed to the high ozone concentrations, even below the inversion layer. Less

对流层臭氧对全球大气环境非常重要，因为它可能损害包括农作物在内的人类健康和植被。这也会影响气候，因为是重要的温室气体之一。但是，臭氧分配，预算以及其对环境的影响尚未得到充分理解。在这项研究中，讨论了东南亚的生物质燃烧对对流层臭氧产生的影响。 study consists of three parts: (I) ozone variation observed during the BIBLE aircraft observation campaigns and influence of biomass burning in the Indonesian region, (II) ozone increased layers observed during the TRACE-P aircraft observation campaign and influence of biomass burning in the Indochina region, and (III) ozone variation over Indochina observed by an intensive ozonezonde observation and influence of biomass burning in the Indochina区域。圣经，O_3的混合比及其前体气体（OPG）W…在热带太平洋上较低。在对流层上，OPG在印度尼西亚东部和西部逐渐增加。虽然O_3并没有增加印度尼西亚，但在印度尼西亚经过的空气群体中增加了50％，在印度洋和澳大利亚北部观察到。这些结果表明，在印度尼西亚的排放和建筑影响的空气质量中生产臭氧。运输过程中的平均O_3生产率估计约为2ppbv/天，与光化学模型计算相当。这些结果表明，印度尼西亚的会议与生物量燃烧和闪电有关，即使生物量燃烧不活跃，印度尼西亚的OPG数量也影响了OPG的数量，并且它在印度洋和北澳大利亚州的O_3增加了10-15 ppbv（约50％）的增加。在较高的零件上，ozone和opg的增加在4 km左右越来越多，而OPG的增加通常是在较高的范围内。 OPG和示踪剂之间进行的轨迹分析和整理分析表明，这种臭氧和OPG的增加归因于印度支那地区的生物量燃烧。在Sri Samrong（17n，99e）中进行了强烈的Ozonesonde观察，泰国，泰国，2003年3月，通常超过OzOne的混合物。在整个对流层中。在观察期间，在泰国约4 km的高度上有一个稳定的反转层，这表明从生物质燃烧发出的臭氧前体和工业活动被向上运输到该层。但是，臭氧混合比在该层上方和下方没有显着变化。气象分析与气溶胶特征的分析相结合表明，东南亚的生物量燃烧不仅是主要的臭氧来源，而且是南亚的污染物，以及来自中纬度的运输，也有助于高臭氧浓度，甚至在反逆层以下。较少的

项目成果

Photochemical production of ozone in the upper troposphere in association with cumulus convection over Indonesia

• DOI: 10.1029/2001jd000844
• 发表时间: 2002-02
• 期刊: Journal of Geophysical Research
• 作者: K. Kita;S. Kawakami;Y. Miyazaki;Y. Higashi;Y. Kondo;N. Nishi;M. Koike;D. Blake;T. Machida;T. Sano;Weiwei Hu;M. Ko;T. Ogawa

Photochemical ozone budget during BIBLE-A and B campaigns.

BIBLE-A 和 B 活动期间的光化学臭氧预算。

• 发表时间: 2003
• 期刊: J.Geophys.Res. 108
• 作者: M.Ko;W.Hu;J.Rodriguez;Y.Kondo;M.Koike;K.Kita;S.Kawakami;D.Blake;S.Liu
• 通讯作者: S.Liu

Removal of NOx and NOy in biomass burning plumes in the boundary layer over northern Australia.

去除澳大利亚北部边界层生物质燃烧羽流中的 NOx 和 NOy。

• 发表时间: 2003
• 期刊: Journal of Geophysical Research vol.108
• 作者: N.Takegawa;Y.Kondo;M.Koike;M.Ko;K.Kita;D.R.Blake;N.Nishi;W.Hu;J.B.Liley;S.Kawakami;T Shirai;Y.Miyazaki;H.Ikeda;J.Russell-Smith;T.Ogawa
• 通讯作者: T.Ogawa

Reactive nitrogen over the tropical Western Pacific Influence from lightning and biomass burning

热带西太平洋上空的活性氮 闪电和生物质燃烧的影响

• 发表时间: 2003
• 期刊: J.Geophys.Res. 108
• 作者: M.Koike;Y.Kondo;D.Akutagawa;K.Kita;N.Nishi;S.C.Liu;D.Blake;S.Kawakami;N.Takegawa;M.Ko;Y.Zhao;T.Ogawa
• 通讯作者: T.Ogawa

Effects of biomass burning, lightning, and convection on O3, CO, and NOy over the tropical Pacific and Australia in August-October.

8-10月生物质燃烧、闪电和对流对热带太平洋和澳大利亚上空 O3、CO 和 NOy 的影响。

• 发表时间: 2003
• 期刊: J.Geophys.Res. 108
• 作者: Y.Kondo;M.Koike;K.Kita;H.Ikeda;N.Takegawa;I.Bey;D.J.Jacob;S.Kawakami;D.Blake;S.C.Liu;M.Ko;H.Irie;Y.Miyazaki;Y.Higashi;B.Liley;N.Nishi;Y.Zhao;T.Ogawa
• 通讯作者: T.Ogawa