International Conference and Early Career Scientists School on Environmental Observations, Modelling and Information Systems | |
A variational approach to environmental and climatic problems of urban agglomerations | |
生态环境科学;计算机科学 | |
Penenko, V.V.^1,2 ; Tsvetova, E.A.^1 | |
Institute of Computational Mathematics and Mathematical Geophysics, SB RAS, 6, Akademika Lavrentyeva pr., Novosibirsk | |
630090, Russia^1 | |
Novosibirsk State University, 2, Pirogova str., Novosibirsk | |
630090, Russia^2 | |
关键词: Anthropogenic origin; Heterogeneous surface; Hydrological cycles; Modeling technology; Transport and transformation; Urban agglomerations; Variational approaches; Variational principles; | |
Others : https://iopscience.iop.org/article/10.1088/1755-1315/48/1/012020/pdf DOI : 10.1088/1755-1315/48/1/012020 |
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来源: IOP | |
【 摘 要 】
We discuss some aspects of the development of a variational approach to study the dynamics of climatic and ecological systems under intensive actions of natural and anthropogenic origin. The variational principle essentially represents a versatile tool to create a consistent modeling technology based on models of processes coupled with available observational data. The basic entities included in the formulation of the variational principle are models of processes; data and models of observations; target criteria for forecasting; a priori information about all the required elements of the system. We develop a set of mathematical models combined within the framework of the variational principle. They describe the dynamics of the atmosphere and water bodies in conjunction with a thermally and dynamically heterogeneous surface of the Earth; the hydrological cycle, moisture in the atmosphere and the soil; radiation transfer in the system of the atmosphere and the underlying surface; and transport and transformation of various substances in gaseous and aerosol states in the atmosphere. As an example, we demonstrate the results of calculations performed with a set of numerical models adapted to the conditions of a Novosibirsk city agglomeration. The results of scenario calculations on the formation of mesoclimates and quality of the atmosphere for the typical conditions of Siberian cities are presented.
【 预 览 】
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A variational approach to environmental and climatic problems of urban agglomerations | 980KB | download |