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| DOI | 10.1016/j.atmosenv.2020.117579 |
| An accurate strategy to retrieve multiple source emissions in the atmosphere | |
| Albani R.A.S.; Albani V.V.L. | |
| 发表日期 | 2020 |
| ISSN | 1352-2310 |
| 卷号 | 233 |
| 英文摘要 | We propose a new methodology to retrieve multiple point emission sources in the atmosphere. To allow more realistic modelling, the dispersion problem is solved by a stabilized finite element formulation. The simultaneous estimation of the source strengths, their locations and the total number of sources is made employing Tikhonov-type regularization, with a composite data misfit function. The corresponding minimization of the Tikhonov-type functional is carried out by a combination of a splitting strategy algorithm with a gradient-descent method. We illustrate the accuracy of the proposed technique by using Fusion Field Trials 2007 (FFT07) data. © 2020 Elsevier Ltd |
| 关键词 | Atmospheric dispersionFinite element methodGauss-seidel-like algorithmMultiple source estimationTikhonov-type regularization |
| 语种 | 英语 |
| scopus关键词 | Atmospherics; Earth atmosphere; Emission sources; Gradient Descent method; Multiple source; Number of sources; Realistic modelling; Simultaneous estimation; Splitting strategies; Stabilized finite element; Gradient methods; accuracy assessment; algorithm; atmospheric pollution; finite element method; pollutant source; strategic approach; algorithm; article; atmospheric dispersion; field study; finite element analysis |
| 来源期刊 | ATMOSPHERIC ENVIRONMENT
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/249114 |
| 作者单位 | Polytechnic Institute, Rio de Janeiro State University, Nova Friburgo, RJ 28.625-570, Brazil; Dept of Mathematics, Federal University of Santa Catarina, Campus Trindade, Florianopolis, SC 88.040-900, Brazil |
| 推荐引用方式 GB/T 7714 | Albani R.A.S.,Albani V.V.L.. An accurate strategy to retrieve multiple source emissions in the atmosphere[J],2020,233. |
| APA | Albani R.A.S.,&Albani V.V.L..(2020).An accurate strategy to retrieve multiple source emissions in the atmosphere.ATMOSPHERIC ENVIRONMENT,233. |
| MLA | Albani R.A.S.,et al."An accurate strategy to retrieve multiple source emissions in the atmosphere".ATMOSPHERIC ENVIRONMENT 233(2020). |
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