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

IF 0.5 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES International Journal of Environment and Pollution Pub Date : 2019-01-01 DOI:10.1504/ijep.2019.10026237
Z. Zlatev, I. Dimov, I. Faragó, K. Georgiev, Ágnes Havasi
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Abstract

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.
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研究气候变化对大气中臭氧水平影响的先进算法
温度升高对某些污染水平的影响是通过发展气候情景并连续运行16年来研究的。实验中使用的数学模型是一个非线性偏微分方程系统,空间域包括整个欧洲及其周围的一些地区。在对方程中的空间导数进行直接离散化后,会出现计算困难的问题。只有解决以下五个重要问题,才能成功地解决巨大的计算问题:1)应用准确有效的数值算法;2)选择合适的拆分程序;3)开发并行代码;4)使用高速计算机;5)充分利用并行计算机的高速缓存存储器。为了说明代码的效率和未来气候变化将导致某些污染水平持续增加的事实,将提出数值结果。
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来源期刊
CiteScore
1.10
自引率
0.00%
发文量
3
审稿时长
4.5 months
期刊介绍: IJEP provides an international forum in the field of environment and pollution and addresses early and medium-term challenges involving scientific prediction, modelling and assessment. It focuses on ground-breaking research in the science of environmental pollution, at the early scientific stage. It is one of three key journals which together offer complete coverage of environmental issues: IJETM focuses on technical/engineering, policy and management solutions for environmental problems, and IJGEnvI focuses on future, longer-term environmental scenarios, ecological economics, climate change and biodiversity.
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