Accelerating simulations using REDCHEM_v0.0 for atmospheric chemistry mechanism reduction

<p>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 mech...

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Bibliographic Details
Main Authors: Z. M. Nikolaou, J.-Y. Chen, Y. Proestos, J. Lelieveld, R. Sander
Format: Article
Language:English
Published: Copernicus Publications 2018-08-01
Series:Geoscientific Model Development
Online Access:https://www.geosci-model-dev.net/11/3391/2018/gmd-11-3391-2018.pdf
Description
Summary:<p>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.</p>
ISSN:1991-959X
1991-9603