Roberti, D. R. and Anfossi, D. and de Campos Velho, H. F. and Degrazia, G. A. (2007) Estimation of emission rate from experimental data. Il nuovo cimento C, 30 (2). pp. 177-186. ISSN 1826-9885
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Abstract
The estimation of the source pollutant strength is a relevant issue for atmospheric environment. This characterizes an inverse problem in the atmospheric pollution dispersion studies. In the inverse analysis, a time-dependent pollutant source is considered, where the location of such source term is assumed known. The inverse problem is formulated as a non-linear optimization approach, whose objective function is given by the least-square difference between the measured and simulated by the mathematical model, pollutant concentration, associated with a regularization operator. The forward problem is addressed by a Lagrangian model, and a quasi-Newton method is employed for minimizing the objective function. The second-order Tikhonov regularization is applied and the regularization parameter is computed by using the L-curve scheme. The inverse-problem methodology is verified with data from the tracer Copenhagen experiment.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Turbulent diffusion |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 20 Mar 2020 16:10 |
| Last Modified: | 20 Mar 2020 16:10 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/16230 |
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