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Advanced algorithms for studying the impact of climate changes on ozone levels in the atmosphere

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  • Zahari Zlatev
  • Ivan Dimov, Bulgarian Acad Sci, Bulgarian Academy of Sciences, Inst Informat & Commun Technol, Dept Parallel Algorithms
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  • Istvan Farago, Budapest Univ Technol & Econ, Budapest University of Technology & Economics, Dept Differential Equat
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  • Krassimir Georgiev, Bulgarian Acad Sci, Bulgarian Academy of Sciences, Inst Informat & Commun Technol, Dept Parallel Algorithms
  • ,
  • Agnes Havasi, Eotvos Lorand Univ, Eotvos Lorand University, Dept Appl Anal & Computat Math

The impact of the increased temperature on some pollution levels is studied by developing climate scenarios and by running them on a period of 16 consecutive years. The mathematical model used in the experiments is a system of nonlinear partial differential equations (PDEs) and the space domain contains the whole of Europe together with some of its surroundings. Difficult computational problems arise after the direct discretisation of the spatial derivatives in the equations. The enormous computational problems can be treated successfully only by resolving five important tasks: 1) applying accurate and efficient numerical algorithms; 2) selecting an appropriate splitting procedure; 3) developing parallel codes; 4) using high-speed computers; 5) exploiting well the cache memories of the parallel computers. Numerical results will be presented in order to illustrate both the efficiency of the code and the fact that the future climate changes will result in consistent increase of some pollution levels.

Original languageEnglish
JournalInternational Journal of Environment and Pollution
Pages (from-to)212-238
Number of pages27
Publication statusPublished - 2019

    Research areas

  • large-scale environmental models, systems of nonlinear PDEs, numerical algorithms, splitting techniques, parallel codes, high-speed computers, cache memory, climate changes, ozone levels, damaging effects, AIR-POLLUTION LEVELS, NUMERICAL-INTEGRATION, BIOGENIC EMISSIONS, MODEL, ASSIMILATION, PART, TRANSPORT, BULGARIA, PREDICTIONS, STEPSIZE

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