Measurement report: Assessment of Asian emissions of ethane and propane with a chemistry transport model based on observations from the island of Hateruma

Adedeji, Adedayo R.; Andrews, Stephen J.; Rowlinson, Matthew J.; Evans, Mathew J.; Lewis, Alastair C.; Hashimoto, Shigeru; Mukai, Hitoshi; Tanimoto, Hiroshi; Tohjima, Yasunori; Saito, Takuya

doi:https://doi.org/10.5194/acp-23-9229-2023

Articles | Volume 23, issue 16

https://doi.org/10.5194/acp-23-9229-2023

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

https://doi.org/10.5194/acp-23-9229-2023

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

Articles | Volume 23, issue 16

Measurement report

|

22 Aug 2023

Measurement report |

| 22 Aug 2023

Measurement report: Assessment of Asian emissions of ethane and propane with a chemistry transport model based on observations from the island of Hateruma

Adedayo R. Adedeji, Stephen J. Andrews, Matthew J. Rowlinson, Mathew J. Evans, Alastair C. Lewis, Shigeru Hashimoto, Hitoshi Mukai, Hiroshi Tanimoto, Yasunori Tohjima, and Takuya Saito

Data sets

Trace gas measurements at Hateruma station in 2018 Takuya Saito, Shigeru Hashimoto, Hitoshi Mukai, Hiroshi Tanimoto, Yasunori Tohjima and Motoki Sasakawa https://doi.org/10.17595/20230217.001

GEOS-Chem model output for surface atmospheric compositions over East Asia Adedayo R. Adedeji, Stephen J. Andrews, Mathew J. Evans, Alastair C. Lewis and Takuya Saito https://doi.org/10.17595/20230707.001

geoschem/geos-chem: GEOS-Chem 12.7.1 (12.7.1) The International GEOS-Chem Community https://doi.org/10.5281/zenodo.3676008

Input data for GEOS-Chem Classic The International GEOS-Chem Community http://geoschemdata.wustl.edu

Short summary

We use the GEOS-Chem model to interpret observations of CO, C₂H₆, C₃H₈, NO_x, NO_y and O₃ made from Hateruma Island in 2018. The model captures many synoptic-scale events and the seasonality of most pollutants at the site but underestimates C₂H₆ and C₃H₈ during the winter. These underestimates are unlikely to be reconciled by increases in biomass burning emissions but could be reconciled by increasing the Asian anthropogenic source of C₂H₆ and C₃H₈ by factors of around 2 and 3, respectively.