Adjustment of the power of model emissions of anthropogenic atmospheric pollution sources based on measurement data and adjoint problem methods
P.N. Antokhin1,2, A.V. Penenko2,3, M.Yu. Arshinov1, B.D. Belan1, A.V. Gochakov4
1E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
2Russian State Hydrometeorological University, St. Petersburg, Russia
3Institute of Computational Mathematics and Mathematical Geophysics of the Siberian Branch of the RAS, Novosibirsk, Russia
4Siberian Regional Hydrometeorological Research Institute, Novosibirsk, Russia, Novosibirsk, Russia
Keywords: numerical modeling, inverse modeling, adjoint problem, emission source
Abstract
The article presents an approach to estimating and adjusting the emission power of anthropogenic sources based on forward and inverse modeling. The WRF-Chem model was used as a direct modeling tool, and the IMDAF system developed by the authors was used for inverse modeling. The results of direct modeling provided data on meteorological fields and the distribution of impurities necessary for solving adjoint problems. The use of the adjoint problem method made it possible to calculate a correction factor that determines how much it is necessary to change the power of sources that fall into the sensitivity zone to achieve the best agreement with measurements.
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