DOI: 10.5061/dryad.f4qrfj78x
title: Modelling system for computing the tropospheric O3 and CH4 perturbations from South Korean Emissions (KORUS-AQ period)

description: Source code and dependent datasets used to model the perturbations to
 tropospheric ozone (O3) and methane (CH4) due to South Korean air
 pollution emissions. The modelling system consists of three stages: The
 boundary layer-residual (BL-RL) stage (BL-RL), plume (PL) stage, and
 dispersed pollution (DP) stage. The directory contains a modified version
 of F0AM v3.1, Emission inventories (KORUS v5, GFED5, and MEGAN v2.10), and
 processed datasets from ERA5, EDGAR, KORUS-AQ, and ATom. 
description: # Modelling System for CH4 and O3 perturbations from South Korean air
 pollution [Access this dataset on
 Dryad](https://doi.org/10.5061/dryad.f4qrfj78x) A three-part modelling
 system of South Korean air pollution in the boundary layer and residual
 layer (**BL-RL stage**), transported offshore as pollution plumes (**PL
 stage**), and as dispersed perturbations to the background air (**DP
 stage**). *Modelling_System.zip* contains the source code run the
 modelling stages, and output from those runs, documented
 at [[https://doi.org/10.5194/egusphere-2025-6012](https://doi.org/10.5194/egusphere-2025-6012)]. Running the model stages requires MATLAB (e.g. R2022A) and some datasets from the complementary Zenodo repository (*F0AM_and_Inventories.zip*). Extract the directories within *F0AM_and_Inventories.zip* to *Modelling_System/Data/* before attempting to run the model components (e.g., *Modelling_System/Data/KORUSV5*) ## Description of the data and file structure Additional README.md files are provided inside the model base directory and subdirectories. The basic directory structure is as follows: ### Source/ Source code for running the model stages. ### Output/ Location for saved output subdirectories generated by the BLRL model. Output subdirectories are used as input to the PL model and analysis tools. ### Data/ Datasets used by the modelling system including ERA5, emissions inventories (KORUS-v5, GFED5, MEGAN v2.10, and EDGAR temporal scalings), chemical mechanisms from MCM v3.1.1 (Chem/ subdirectory), and observational datasets. Some of these datasets must be downloaded and extracted here from the complementary Zenodo repository (*F0AM_and_Inventories.zip*). ### Analysis/ Tools for analysing the output subdirectory data. Scripts in this directory contain example input. ## Sharing/Access information Data included in the complementary Zenodo repository: ### F0AM v3.1 Slightly modified in this dataset. Documented at [[https://doi.org/10.5194/gmd-9-3309-2016](https://doi.org/10.5194/gmd-9-3309-2016)] and accessed via [[https://github.com/AirChem/F0AM](https://github.com/AirChem/F0AM)]. ### MCM v3.3.1 Rate coefficient data generated via [[https://mcm.york.ac.uk/MCM/](https://mcm.york.ac.uk/MCM/)] ### ERA5 data Accessed via [[https://doi.org/10.24381/cds.143582cf](https://doi.org/10.24381/cds.143582cf)] and [[https://10.24381/cds.adbb2d47](https://10.24381/cds.adbb2d47)]. Land surface data accessed via [[https://10.24381/cds.006f2c9a](https://10.24381/cds.006f2c9a)]. ### Emission inventories #### KORUS-v5 Documented at [[https://doi.org/10.3390/su12197930](https://doi.org/10.3390/su12197930)] #### GFED5 Documented at [[https://doi.org/10.5194/essd-15-5227-2023](https://doi.org/10.5194/essd-15-5227-2023)] #### MEGAN v2.10 Documented at [[https://doi.org/10.5194/gmd-5-1471-2012](https://doi.org/10.5194/gmd-5-1471-2012)] #### EDGAR temporal profiles Documented at [[https://doi.org/10.1038/s41597-020-0462-2](https://doi.org/10.1038/s41597-020-0462-2)] and available via [[https://edgar.jrc.ec.europa.eu/dataset_temp_profile#sources](https://edgar.jrc.ec.europa.eu/dataset_temp_profile#sources)].