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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >TRACER TRANSPORT FOR REALISTIC AIRCRAFT EMISSION SCENARIOS CALCULATED USING A THREE-DIMENSIONAL MODEL
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TRACER TRANSPORT FOR REALISTIC AIRCRAFT EMISSION SCENARIOS CALCULATED USING A THREE-DIMENSIONAL MODEL

机译：使用三维模型计算的现实飞机排放场景的示踪剂运输

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A three-dimensional transport model, which uses winds from a stratospheric data assimilation system, is used to study the transport of supersonic aircraft exhaust in the lower stratosphere. A passive tracer is continuously injected into the transport model. The tracer source distribution is based on realistic scenarios for the daily emission rate of reactive nitrogen species for all forecasted flight routes. Winds are from northern hemisphere winter/spring months for 1979 and 1989; there are minimal differences between the tracer integrations for the 2 years. During the integration, peak tracer mixing ratios in the flight corridors are compared with the zonal mean and found to be greater by a factor of 2 or less, This implies that the zonal mean assumption used in two dimensional models is reasonable during winter and spring. There is a preference for pollutant buildup in the heavily traveled North Pacific and North Atlantic flight corridors. Pollutant concentration in the corridors depends on the position of the Aleutian anticyclone and the northern hemisphere polar vortex edge. [References: 18]
机译：一个利用来自平流层数据同化系统的风的三维运输模型来研究低层平流层中超音速飞机排气的运输。无源示踪剂连续注入到运输模型中。示踪剂源分布基于所有预测飞行路线中活性氮物质日排放率的实际情况。 1979年和1989年的风来自北半球的冬季/春季。在过去的两年中，跟踪器集成之间的差异很小。在积分过程中，将飞行走廊中的峰值示踪剂混合比与区域平均值进行比较，发现该平均值比区域平均值大2或更少，这意味着二维模型中使用的区域平均值假设在冬季和春季都是合理的。在人流密集的北太平洋和北大西洋的飞行走廊中，污染物的积累较为可取。走廊中的污染物浓度取决于阿留申反气旋和北半球极涡边缘的位置。 [参考：18]

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