Articles | Volume 17, issue 2
https://doi.org/10.5194/gmd-17-567-2024
https://doi.org/10.5194/gmd-17-567-2024
Development and technical paper
 | 
24 Jan 2024
Development and technical paper |  | 24 Jan 2024

The first application of a numerically exact, higher-order sensitivity analysis approach for atmospheric modelling: implementation of the hyperdual-step method in the Community Multiscale Air Quality Model (CMAQ) version 5.3.2

Jiachen Liu, Eric Chen, and Shannon L. Capps

Data sets

CMAQ Model Version 5.3, 5.3.1, 5.3.2, 5.3.3 Input Data - 7/1/2016-7/14/2016 12 km Southeast US (V1) US EPA https://doi.org/10.15139/S3/IQVABD

Model code and software

CMAQ-hyd Jiachen Liu et al. https://doi.org/10.5281/zenodo.7938725

CMAQ (5.3.2) US EPA Office of Research and Development https://doi.org/10.5281/zenodo.4081737

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Short summary
Air pollution harms human life and ecosystems, but its sources are complex. Scientists and policy makers use air pollution models to advance knowledge and inform control strategies. We implemented a recently developed numeral system to relate any set of model inputs, like pollutant emissions from a given activity, to all model outputs, like concentrations of pollutants harming human health. This approach will be straightforward to update when scientists discover new processes in the atmosphere.