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arXiv 0908.1589physics.ao-phphysics.comp-phphysics.flu-dyn
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估算多个点源大气污染物排放的逆高斯羽流方法

An inverse Gaussian plume approach for estimating atmospheric pollutant emissions from multiple point sources

Enkeleida Lushi, John M. Stockie

摘要:

提出了一种利用地面沉积的颗粒性物质的测量值估算多个点源向大气中污染物排放速率的方法。该方法是基于高斯羽流型解决方案的平流-扩散方程与地面沉积和给定的排放源。这个解决方案的正问题被纳入一个逆算法估计的排放率通过线性最小二乘方法。使用测量的沉积和气象数据,从一个大的铅锌冶炼业务在特雷尔,不列颠哥伦比亚省的结果进行验证。该算法被证明是强大的,能够产生合理的准确估计总污染物排放量在相对较短的距离在这项研究中的利益。

英文摘要:

A method is developed for estimating the emission rates of contaminants into the atmosphere from multiple point sources using measurements of particulate material deposited at ground level. The approach is based on a Gaussian plume type solution for the advection-diffusion equation with ground-level deposition and given emission sources. This solution to the forward problem is incorporated into an inverse algorithm for estimating the emission rates by means of a linear least squares approach. The results are validated using measured deposition and meteorological data from a large lead-zinc smelting operation in Trail, British Columbia. The algorithm is demonstrated to be robust and capable of generating reasonably accurate estimates of total contaminant emissions over the relatively short distances of interest in this study.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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