Methane loss (L-CH4) and tropospheric ozone (O3) burden in response to a 10% KORUS-AQ emission perturbation in the UCI chemistry-transport model
Data files
Aug 03, 2026 version files 5.12 GB
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CTM_control_run_output.nc
2.56 GB
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CTM_emission_run_output.nc
2.56 GB
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README.md
896 B
Abstract
This dataset contains 4D model output (indexed by longitude, latitude, level, and day) of daily methane loss (L-CH4), mean tropospheric ozone burden (O3), and daily production and loss of odd-oxygen (P-Ox and L-Ox), in mol units. Data are recorded for a 92-day control run, and an identical run perturbed by 45-days of South Korean air pollution emissions at the 10 % level during the KORUS-AQ period. The difference in output between the two runs, scaled by a factor of 10, gives the perturbation to e.g. L-CH4 or O3 burden caused by 100 % of the KORUS-AQ emissions. The net production of O3 (mol) caused by the emissions may be derived from the summed difference in O3 burden (mol days) divided by the vertically-resolved O3 lifetime (days).
Description of the data and file structure
CTM_control_run_output.nc
Processed 4D output from a 92-day control run in the UCI chemistry-transport model beginning 2000/05/01 00:00:00 UTC. The output includes daily loss of methane (L-CH4), daily mean tropospheric O3 burden, and daily production and loss of odd-oxygen (P-Ox and L-Ox). The file also includes the four O3 lifetimes used to derive net production of O3, resolved on vertical model levels. File includes documentation for all variables.
CTM_emission_run_output.nc
As above, but with an additional 10% perturbation of South Korean ("KORUS-AQ") air pollution emissions during the first 45 simulation days. File includes documentation for all variables.