气候变化领域集成服务门户(CCPortal): An inverse method to estimate the source term of atmospheric pollutant releases

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DOI	10.1016/j.atmosenv.2021.118554
	An inverse method to estimate the source term of atmospheric pollutant releases
	Wang J.; Wang B.; Liu J.; Cheng W.; Zhang J.
发表日期	2021
ISSN	1352-2310
卷号	260
英文摘要	The rapid identification of source parameters (e.g., release locations, intensities, and number of sources) is of great importance for the numerical prediction of contaminant events, which helps to implement risk assessment and conduct crowd evacuation. In this study, an inverse method is established to estimate the source term of unknown releases. Validation of the proposed method is performed with a set of synthetic experiments. Results show that the algorithm is computationally efficient and can successfully reproduce the characteristics of multiple unknown point sources. To further assess the practicability of the method in the real world, uncertainty analysis is conducted with errors from measurements and wind fields. It is revealed that the method is relatively stable to uncertainties and can accurately estimate the number of sources and the grid cells where the sources are located. With the disturbed synthetic data, the relative errors of source intensities are all estimated within 15%. This study provides a perspective for source term estimation in the emergency response to a toxic gas leak or terrorist attack. © 2021
关键词	Atmospheric pollutants Inverse modelling Multi-point source identification Rapid reconstruction
语种	英语
scopus关键词	Inverse problems; Risk assessment; Terrorism; Uncertainty analysis; Atmospheric pollutants; Inverse methods; Inverse modelling; Multi-point source identification; Number of sources; Pollutants release; Rapid identification; Rapid reconstruction; Source terms; Uncertainty; Pollution; toxic gas; algorithm; atmospheric pollution; inverse analysis; model validation; numerical model; risk assessment; source parameters; air pollution; algorithm; arithmetic; Article; grid cell; mathematical analysis; measurement accuracy; measurement error; physical parameters; prediction; terrorism; uncertainty; validation process
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248349
作者单位	The State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese, Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; Beijing Institute of Applied Meteorology, Beijing, 100039, China
推荐引用方式 GB/T 7714	Wang J.,Wang B.,Liu J.,et al. An inverse method to estimate the source term of atmospheric pollutant releases[J],2021,260.
APA	Wang J.,Wang B.,Liu J.,Cheng W.,&Zhang J..(2021).An inverse method to estimate the source term of atmospheric pollutant releases.ATMOSPHERIC ENVIRONMENT,260.
MLA	Wang J.,et al."An inverse method to estimate the source term of atmospheric pollutant releases".ATMOSPHERIC ENVIRONMENT 260(2021).