Modeling of the transport and diffusion of a tracer in the Freiburg-Schauinsland area
Modeling of the transport and diffusion of a tracer in the Freiburg-Schauinsland area
复制标题
弗莱堡-绍因斯兰地区示踪剂的传输和扩散建模
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
G. Adrian
中科院分区：
文献类型：
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作者：
F. Fiedler;I. Bischoff;N. Kalthoff;G. Adrian
1996年6月，在德国弗莱堡-朔因斯兰地区进行了Schaumsland臭氧前体实验(SLOPE)。这项实验的一个主要目标是调查从弗莱堡到绍因斯兰途中弗莱堡城市羽流的臭氧及其前体的行为[Volz-Thomas等人，这一问题]。气象[Kalthoff等人，本期]和化学测量[Patz等人，本期；Kolahgar等人，本期]是在弗赖堡和Schauinsland之间预期运输路径沿线的几个站点进行的。为了将传输和扩散的贡献与化学反应的贡献分开，以计算传输时间和稀释因子，在传输路径的开始处释放惰性示踪剂SF6[Kalthoff等人，本期；M.Mollmann-Coers等人，未发表的数据，1999(下称M99)]。首先将模型计算的结果与不同测点的观测结果进行了比较。然后利用计算结果为观测到的中尺度气象现象提供解释支持。最后，他们解释了在弗赖堡和绍因斯兰之间观测到的示踪剂浓度的时间发展和空间分布。
In June 1996, the Schaumsland Ozone Precursor Experiment (SLOPE) was performed in the area of Freiburg-Schauinsland (Germany). A major objective of this experiment was to investigate the behavior of ozone and its precursors of the city plume of Freiburg on the way from Freiburg to Schauinsland [Volz-Thomas et al., this issue]. Meteorological [Kalthoff et al., this issue] and chemical measurements [Patz et al., this issue; Kolahgar et al., this issue] were carried out at several stations along the expected transport path between Freiburg and Schauinsland. In order to separate the contribution of transport and diffusion from that of chemical reaction, to calculate the transport time and dilution factor, the inert tracer SF6 was released at the beginning of the transport path [Kalthoff et al., this issue; M. Mollmann-Coers et al., unpublished data, 1999 (hereinafter referred to as M99)]. The results from the model calculations were first compared with the observations at different measurement sites. Then the calculations were used to provide interpretation support with regard to the mesoscale meteorological phenomena observed. Finally, they delivered explanations for the observed temporal development and spatial distribution of the tracer concentrations between Freiburg and Schauinsland.