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Accelerating simulations using REDCHEM_v0.0 for atmospheric chemistry mechanism reduction

机译:使用Redchem_v0.0加速模拟,用于减少大气化学机制

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Chemical mechanism reduction is common practice in combustion research for accelerating numerical simulations; however, there have been limited applications of this practice in atmospheric chemistry. In this study, we employ a powerful reduction method in order to produce a skeletal mechanism of an atmospheric chemistry code that is commonly used in air quality and climate modelling. The skeletal mechanism is developed using input data from a model scenario. Its performance is then evaluated both a priori against the model scenario results and a posteriori by implementing the skeletal mechanism in a chemistry transport model, namely the Weather Research and Forecasting code with Chemistry. Preliminary results, indicate a substantial increase in computational speed-up for both cases, with a minimal loss of accuracy with regards to the simulated spatio-temporal mixing ratio of the target species, which was selected to be ozone.
机译:减少化学机制是加速数值模拟的燃烧研究的常见实践;然而,这种做法在大气化学方面存在有限。在这项研究中,我们采用了强大的减少方法,以产生常用于空气质量和气候建模的大气化学代码的骨骼机制。使用来自模型方案的输入数据开发了骨架机制。然后,通过在化学传输模型中实施骨架机制,即具有化学的天气研究和预测代码,通过在化学传输模型中实施骨骼机制来评估其性能和后验。初步结果,表明两种情况的计算加速的大幅增加,关于靶物种的模拟时空混合比的最小精度丧失,选择为臭氧。

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