Improved representation of volcanic sulfur dioxide depletion in Lagrangian transport simulations: a case study with MPTRAC v2.4

Liu, Mingzhao; Hoffmann, Lars; Griessbach, Sabine; Cai, Zhongyin; Heng, Yi; Wu, Xue

doi:https://doi.org/10.5194/gmd-16-5197-2023

Articles | Volume 16, issue 17

https://doi.org/10.5194/gmd-16-5197-2023

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

https://doi.org/10.5194/gmd-16-5197-2023

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

Articles | Volume 16, issue 17

Development and technical paper

|

08 Sep 2023

Development and technical paper |

| 08 Sep 2023

Improved representation of volcanic sulfur dioxide depletion in Lagrangian transport simulations: a case study with MPTRAC v2.4

Mingzhao Liu, Lars Hoffmann, Sabine Griessbach, Zhongyin Cai, Yi Heng, and Xue Wu

Data sets

Running script of modeling the Ambae eruption SO2 transport in July 2018 with MPTRAC v2.4 Mingzhao Liu, Lars Hoffmann, and Sabine Griessbach https://doi.org/10.5281/zenodo.8163071

Model code and software

Massive-Parallel Trajectory Calculations (MPTRAC) (v2.4) Lars Hoffmann, Jan Clemens, Kaveh Haghighi, and Mingzhao Liu https://doi.org/10.5281/zenodo.7473222

Short summary

We introduce new and revised chemistry and physics modules in the Massive-Parallel Trajectory Calculations (MPTRAC) Lagrangian transport model aiming to improve the representation of volcanic SO₂ transport and depletion. We test these modules in a case study of the Ambae eruption in July 2018 in which the SO₂ plume underwent wet removal and convection. The lifetime of SO₂ shows highly variable and complex dependencies on the atmospheric conditions at different release heights.