A three-dimensional simulation and process analysis of tropospheric ozone depletion events (ODEs) during the springtime in the Arctic using CMAQ (Community Multiscale Air Quality Modeling System)

Cao, Le; Li, Simeng; Gu, Yicheng; Luo, Yuhan

doi:https://doi.org/10.5194/acp-23-3363-2023

Articles | Volume 23, issue 5

https://doi.org/10.5194/acp-23-3363-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-3363-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 5

Research article

|

17 Mar 2023

Research article |

| 17 Mar 2023

A three-dimensional simulation and process analysis of tropospheric ozone depletion events (ODEs) during the springtime in the Arctic using CMAQ (Community Multiscale Air Quality Modeling System)

Le Cao, Simeng Li, Yicheng Gu, and Yuhan Luo

Supplement

https://doi.org/10.5194/acp-23-3363-2023-supplement

Data sets

WRF Source Codes and Graphics Software Download Page WRF https://www2.mmm.ucar.edu/wrf/users/download/get_sources.html

CMAQ USEPA https://github.com/USEPA/CMAQ/

CESM2.1/CAM-chem Instantaneous Output for Boundary Conditions R. R. Buchholz, L. K. Emmon, S. Tilmes, and The CESM2 Development Team https://www.acom.ucar.edu/cam-chem/cam-chem.shtml

Index of /aftp/data/barrow/ NOAA https://gml.noaa.gov/aftp/data/barrow/

GOME-2 Tropospheric BrO Column Data Record Release 1 - Metop AC SAF https://doi.org/10.15770/EUM_SAF_O3M_0012

Surface analysis 06Z Tue Feb 28 2023 WPC http://www.wpc.ncep.noaa.gov/html/sfc-zoom.php

acp-supplements Simeng-unique https://github.com/Simeng-unique/acp-supplements

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Short summary

We performed a 3-D mesoscale model study on ozone depletion events (ODEs) occurring in the spring of 2019 at Barrow using an air quality model, CMAQ. Many ODEs observed at Barrow were captured by the model, and the contribution from each physical or chemical process to ozone and bromine species during ODEs was quantitatively evaluated. We found the ODEs at Barrow to be strongly influenced by horizontal transport. In contrast, over the sea, local chemistry significantly reduced the surface ozone.