Contribution of biomass and biofuel emissions to trace gas distributions in Asia during the TRACE‐P experiment
Contribution of biomass and biofuel emissions to trace gas distributions in Asia during the TRACE‐P experiment
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DOI：
10.1029/2002jd003200
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发表时间：
2003-11
影响因子：
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通讯作者：
J. Woo;D. Streets;G. Carmichael;Youhua Tang;Bongin Yoo;Won-Chan Lee;N. Thongboonchoo;S. Pinnock-
中科院分区：
文献类型：
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作者：
J. Woo;D. Streets;G. Carmichael;Youhua Tang;Bongin Yoo;Won-Chan Lee;N. Thongboonchoo;S. Pinnock-
[1]在NASA TRACE-P实验期间，使用具有增强的空间和时间分辨率的综合排放清单来帮助量化三种来源类别(化石、生物燃料和生物质燃烧)的贡献。为支持这一分析，开发了每日生物质燃烧排放量。按部门、区域和来源类别列出了27个物种的排放量及其比率。使用各种统计技术进一步分析了排放分布和化学成分。通过聚类分析，将27个化学物种划分为8个区域分布相似的类群，将52个区域划分为11个化学成分相似的区域类群。这些组被用于化学质量平衡分析，以确定气团的特征，并量化三种来源类别对观测到的物种分布的贡献。分析了与外流事件相关的5个DC8航班，共16个飞行段。总体而言，亚洲的外流是生物燃料、生物质和化石来源的复杂混合物。高纬度和低海拔的后锋区域的飞行对化石燃料排放的贡献很大。冷锋暖区的飞行以生物质燃烧贡献为主(约70%)。当气团来自中国中心时，生物燃料的贡献率很高(约70%)。受体模型的结果与其他3-D化学模型敏感性研究和使用指示物种比率(例如，dk+/dSO42−、CH3CN/Soy、Soy/CO和C2Cl4/CO)的分析是一致的。
[1] A comprehensive emission inventory with enhanced spatial and temporal resolution is used to help quantify the contribution from three source categories (fossil, biofuel, and biomass burning) during the NASA TRACE-P experiment. Daily biomass burning emissions are developed to support this analysis. Emissions of 27 species and their ratios, by sector, region, and source category are presented. The emission distributions and chemical composition are further analyzed using various statistical techniques. Using cluster analysis, the 27 chemical species are combined into 8 groups that have similar regional distribution, and 52 regions are assembled into 11 regional groups that have similar chemical composition. These groups are used in Chemical Mass Balance analysis to characterize air masses and to quantify the contribution of the three source categories to the observed species distributions. Five DC8 flights with 16 flight segments associated with outflow events are analyzed. In general, Asian outflow is a complex mixture of biofuel, biomass, and fossil sources. Flights in the post frontal regions at high latitudes and low altitudes have a high contribution of fossil fuel emissions. Flights in the warm sector of cold fronts are dominated by biomass burning contributions (about 70%). Biofuel contributions are high (about 70%) when air masses come from central China. The receptor model results are shown to be consistent with other 3-D chemical model sensitivity studies and analysis using ratios of indicator species (e.g., dK+/dSO42−, CH3CN/SOy, SOy/CO, and C2Cl4/CO).