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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >A GLOBAL THREE-DIMENSIONAL MODEL STUDY OF CARBONACEOUS AEROSOLS
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A GLOBAL THREE-DIMENSIONAL MODEL STUDY OF CARBONACEOUS AEROSOLS

机译：碳质气溶胶的全球三维模型研究

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We have developed detailed emission inventories for the amount of both black and organic carbon particles from biomass burning sources (wood fuel, charcoal. burning, dung, charcoal production, agricultural, savanna and forest fires). We have also estimated an inventory for organic carbon particles from fossil fuel burning and urban activities from an existing inventory for fossil fuel sources of black carbon, We also provide an estimate for the natural source of organic matter. These emissions have been used together with our global aerosol model to study the global distribution of carbonaceous aerosols. The accuracy of the inventories and the model formulation has been tested by comparing the model simulations of carbonaceous aerosols in the atmosphere and in precipitation with observations reported in the literature. For most locations and seasons, the predicted concentrations are in reasonable agreement with the observations, although the model underpredicts black carbon concentrations in polar regions. The predicted concentrations in remote areas are extremely sensitive to both the rate of removal by wet deposition and the height of injection of the aerosols. Finally, a global map of the aerosol single scattering albedo was developed from the simulated carbonaceous particle distribution and a previously developed model for aerosol sulfates. The computed aerosol single scattering albedos compare well with observations, suggesting that most of the important aerosol species have been included in the model. For most locations and seasons, the single scattering albedo is larger than 0.85, indicating that these aerosols, in general, lead to a net cooling. [References: 148]
机译：我们已经针对生物质燃烧源（木材燃料，木炭，燃烧，粪便，木炭生产，农业，热带稀树草原和森林大火）中黑色和有机碳颗粒的数量制定了详细的排放清单。我们还根据燃烧黑碳的化石燃料来源的现有清单，估算了来自化石燃料燃烧和城市活动的有机碳颗粒清单。我们还提供了自然有机物来源的估算。这些排放已与我们的全球气溶胶模型一起用于研究碳质气溶胶的全球分布。通过将大气和降水中碳质气溶胶的模型模拟与文献报道的观察结果进行比较，测试了清单和模型公式的准确性。对于大多数位置和季节，尽管模型低估了极地地区的黑碳浓度，但预测的浓度与观测值在合理的范围内。偏远地区的预测浓度对湿式沉积的去除速率和气溶胶的注入高度都极为敏感。最后，根据模拟的碳质颗粒分布和先前开发的硫酸盐气溶胶模型，绘制了气溶胶单散射反照率的全球地图。计算得出的气溶胶单散射反照率与观测值比较好，表明该模型中已包含了大多数重要的气溶胶种类。在大多数位置和季节，单个散射反照率大于0.85，这表明这些气溶胶通常会导致净降温。 [参考：148]

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