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Experience in using Models of Pollutant Dispersal in an Urban Environment
Atomic Energy ( IF 0.5 ) Pub Date : 2020-10-26 , DOI: 10.1007/s10512-020-00692-6
S. V. Panchenko , D. A. Pripachkin , A. I. Kryshev , M. N. Katkova

The experience gained in validating calculations of the ground-surface concentration of a pollutant injected into an urban environment from a stationary high-altitude source is presented. A Gaussian model using the average annual emission, the characteristic parameters of the source, and a real annual wind rose, as well as a Lagrangian-type model, in which the input parameters were the average daily emission and hourly meteorological parameters, are examined. The computational results were compared with the measured values of the concentration of 131I. It is shown that when using average annual data the uncertainty of the estimates at a particular point located 4–6 km from the source сan reach 4-fold. For emissions which are not protracted (up to one day), even given a full-fledge set of data on the meteorological parameters, the uncertainty of the estimated average daily concentration at the same point can reach one order of magnitude.



中文翻译:

在城市环境中使用污染物扩散模型的经验

介绍了验证计算从固定高空源注入城市环境的污染物的地表浓度时获得的经验。研究了使用年平均排放量,源的特征参数和实际年风量的高斯模型以及拉格朗日类型的模型,其中输入参数为平均日排放量和小时气象参数。将计算结果与131浓度的测量值进行比较一,研究表明,当使用平均年度数据时,在距源4-6 km的特定点处估计的不确定性达到4倍。对于不持久(最多一天)的排放,即使给出了一组完整的气象参数数据,估计在同一点的日平均浓度的不确定性也可以达到一个数量级。

更新日期:2020-10-30
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