Influences of biomass burning during the Transport and Chemical Evolution Over the Pacific (TRACE‐P) experiment identified by the regional chemical transport model

Influences of biomass burning during the Transport and Chemical Evolution Over the Pacific (TRACE‐P) experiment identified by the regional chemical transport model
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DOI:
10.1029/2002jd003110
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发表时间:
2003-11
影响因子:
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通讯作者:
Youhua Tang;G. Carmichael;J. Woo;N. Thongboonchoo;G. Kurata;I. Uno;D. Streets;D. Blake;R. Weber-R.-W
Youhua Tang;G. Carmichael;J. Woo;N. Thongboonchoo;G. Kurata;I. Uno;D. Streets;D. Blake;R. Weber-R.-W
中科院分区:
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文献类型:
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作者:
Youhua Tang;G. Carmichael;J. Woo;N. Thongboonchoo;G. Kurata;I. Uno;D. Streets;D. Blake;R. Weber-R.-W

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(HCN/CO)0.0015和钾(K + /CO)0.0038,但NOy(NOy/CO)0.005的混合比很低,这可能与该区特殊的燃烧条件有关。生物质燃烧气团具有高的臭氧产生效率。生物量事件的O3/NO2值为-17,其他事件为1.7。BB对大气中痕量气体分布的影响可以分为两类:直接反应的影响和BB气溶胶改变J值的影响。这两个影响进行了讨论,为BB影响TRACE-P航班和东亚。BB对化学形态的影响不仅取决于BB烟羽的强度,还取决于其他排放引起的环境污染,在生物排放很强的东南亚,OH背景浓度很低,BB气相化合物主要贡献于OH的产生。对BB气溶胶引起的J值变化的敏感性排序为:OH > HO 2> HCHO > O3; 3月平均值为:OH 50%,HO 2 40%,HCHO 60%,O3 10 ppbv。索引术语:0305大气组成和结构:气溶胶和颗粒物(0345,4801); 0322大气组成和结构:组成源和汇; 0345大气组成和结构:城市和区域污染(0305); 3337气象学和大气动力学:数值模拟和数据同化; 3359气象学和大气动力学:辐射过程;关键词:生物质燃烧,化学传输模式,TRACE-P,光化学过程,气溶胶,辐射影响例如,在太平洋上空的运输和化学演变(TRACE-P)实验期间生物量燃烧的影响,由区域化学运输模型确定,J. Geophys。结果:108(D21),8824,doi:10.1029/2002JD003110,2003。
(� HCN/� CO � 0.0015) and potassium (� K + /� CO � 0.0038) but very low NOy (� NOy/ � CO � 0.005) mixingratios,whichmaybeassociated withthespecialburning condition in this region. The biomass burning air masses have high ozone production efficiency. The observedO3/� NOz values were � 17 in biomass events and 1.7 in other events. The BB influence on the trace gas distributions can be divided into two categories: the influence through direct reactions and the influence caused by BB aerosols changing J values. These two influences are discussed for the BB-affected TRACE-P flights and for east Asia. The BBinfluencesonchemicalspeciesarenotonlydeterminedbytheBBplumeintensitybutalso bytheambientenvironmentcausedbyotheremissions.InSoutheastAsia,wherethebiogenic emissions are very strong, the OH background concentration is low, and the BB gas-phase compounds mainly contribute to OH production. Arranged in the sensitivity to the J value change caused by BB aerosols, we have OH > HO2 > HCHO > O3 when evaluated on a regional average.AveragedoverMarch,thebiomassburningnetinfluenceisashighas50% forOH,40%forHO2,60%forHCHO,and10ppbvforO3forthelayersbelow1km. INDEX TERMS: 0305 Atmospheric Composition and Structure: Aerosols and particles (0345, 4801); 0322 Atmospheric Composition and Structure: Constituent sources and sinks; 0345 Atmospheric Composition and Structure: Pollution—urbanandregional(0305);3337MeteorologyandAtmospheric Dynamics:Numericalmodelingand data assimilation; 3359 Meteorology and Atmospheric Dynamics: Radiative processes; KEYWORDS: biomass burning, chemical transport model, TRACE-P, photochemical process, aerosols, radiative influence Citation: Tang, Y., et al., Influences of biomass burning during the Transport and Chemical Evolution Over the Pacific (TRACE-P) experiment identified by the regional chemical transport model, J. Geophys. Res., 108(D21), 8824, doi:10.1029/2002JD003110, 2003.