Implementing detailed nucleation predictions in the Earth system model EC-Earth3.3.4: sulfuric acid–ammonia nucleation

Svenhag, Carl; Sporre, Moa K.; Olenius, Tinja; Yazgi, Daniel; Blichner, Sara M.; Nieradzik, Lars P.; Roldin, Pontus

doi:https://doi.org/10.5194/gmd-17-4923-2024

Articles | Volume 17, issue 12

https://doi.org/10.5194/gmd-17-4923-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-17-4923-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 12

Model experiment description paper

|

21 Jun 2024

Model experiment description paper |

| 21 Jun 2024

Implementing detailed nucleation predictions in the Earth system model EC-Earth3.3.4: sulfuric acid–ammonia nucleation

Carl Svenhag, Moa K. Sporre, Tinja Olenius, Daniel Yazgi, Sara M. Blichner, Lars P. Nieradzik, and Pontus Roldin

Data sets

Data for: Implementing detailed nucleation predictions in the Earth system model EC-Earth3.3.4: sulfuric acid-ammonia nucleation Carl Svenhag https://doi.org/10.5281/zenodo.10468610

J-GAIN V1.1.0 D. Yazgi and T. Olenius https://doi.org/10.5281/zenodo.8220223

Lookup tables for H2SO4-H2O binary and H2SO4-H2O-NH3 ternary homogeneous and ion-mediated nucleation F. Yu https://doi.org/10.5281/zenodo.3483797

Model code and software

TM5-MP model version 1.2 code used in cb05_CLUST NPF project Carl Svenhag https://doi.org/10.5281/zenodo.10517639

Post-process handling scripts for publication: "Implementing detailed nucleation predictions in the Earth system model EC-Earth3.3.4: sulfuric acid-ammonia nucleation" Carl Svenhag https://doi.org/10.5281/zenodo.10512456

Short summary

Our research shows the importance of modeling new particle formation (NPF) and growth of particles in the atmosphere on a global scale, as they influence the outcomes of clouds and our climate. With the global model EC-Earth3 we show that using a new method for NPF modeling, which includes new detailed processes with NH₃ and H₂SO₄, significantly impacts the number of particles in the air and clouds and changes the radiation balance of the same magnitude as anthropogenic greenhouse emissions.