Iterative modeling of surface pollution dynamics
DOI:
https://doi.org/10.31548/energiya2019.03.047Abstract
Abstract. Modeling and forecasting of the land surface pollution is an important task for researchers. Complex landscapes and soil heterogeneity make calculations more complicate. Models are becoming even more complicate to simulate for urban areas, which combine building objects, open soil, park areas, roads, drainage systems etc. Considering this, it remains relevant to develop methods and technologies for modeling in this field that are efficient and fast.
The purpose of the study is to describe the data structure and principles of the iterative model of distribution of surface contamination of the territory.
The methodological basis of this study is a computer simulation method, iterative approach, general scientific methods.
The article proposes an iterative approach to modeling the spread of contamination on the land surface. At the base of the approach is giving the surface as a matrix which elements are objects with such fields: relative height of the surface element, array of values of the substances, coefficients of absorption by the surface of the corresponding substances, and other attributes. Problem points associated with the mismatch of the rectangular shape of the matrix elements and the radial direction of the contamination spread have been identified. The iterative mechanism of moving a part of a harmful substance into adjacent cells is proposed, which does not require significant computations. The matrix structure of the surface with altitude differences allows us to speak of an oriented graph, on which we can identify special weighted chains that determine the water channels after rainfall and the direction of maximum spread of contamination.
Key words: pollution, landscape, iteration, simulation, modeling
References
FAO. (2018). Proceedings of the Global Symposium on Soil Pollution 2018. Rome, Italy, Food and Agriculture Organization of the United Nations, 976.
Dutt, G.R., Shaffer, M.J., Moore, W.J. (1972). Computer Simulation Model of Dynamic Bio-Physicochemical Processes in Soils, 101.
Tkachenko, O. (2013). Geoprostorova skladova informatsiino-analitychnoi systemy u haluzi roslynnytstva [Geospatial component of the information-analytical system in crop]. Scientific Journal of National University of Life and Environmental Sciences of Ukraine. Series "Tekhnika ta energetyka APK", 184, 150-157.
Dragovića, S., Mihailovića, N., Gajićb, B. (2008). Heavy metals in soils: Distribution, relationship with soil characteristics and radionuclides and multivariate assessment of contamination sources. Chemosphere, 72 (3), 491-495.
https://doi.org/10.1016/j.chemosphere.2008.02.063
Terribile, F., Agrillo, A., Bonfante, A., Buscemi, G., Colandrea, M., D'Antonio, A., De Mascellis, R., De Michele, C., Langella, G., Manna, P., Marotta, L., Mileti, F.A., Minieri, Orefice, N., Valentini, S., Vingiani, S., Basile, A. (2015). A Web-based spatial decision supporting system for land management and soil conservation. Solid Earth, 6, 903-928. doi:10.5194/se-6-903-2015.
https://doi.org/10.5194/se-6-903-2015
Tarasov, D. A., Medvedev, A. N., Sergeev, A. P., Shichkin, A. V., Buevich, A. G. A hybrid method for assessment of soil pollutants spatial distribution. 2017 AIP Conference Proceedings, 1863, 050015 (2017). doi: 10.1063/1.4992212.
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