Comparison of UKESM1 and CESM2 simulations  using the same multi-target stratospheric  aerosol injection strategy

Henry, Matthew; Haywood, Jim; Jones, Andy; Dalvi, Mohit; Wells, Alice; Visioni, Daniele; Bednarz, Ewa M.; MacMartin, Douglas G.; Lee, Walker; Tye, Mari R.

doi:https://doi.org/10.5194/acp-23-13369-2023

Articles | Volume 23, issue 20

https://doi.org/10.5194/acp-23-13369-2023

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

https://doi.org/10.5194/acp-23-13369-2023

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

Articles | Volume 23, issue 20

Research article

|

24 Oct 2023

Research article |

| 24 Oct 2023

Comparison of UKESM1 and CESM2 simulations using the same multi-target stratospheric aerosol injection strategy

Matthew Henry, Jim Haywood, Andy Jones, Mohit Dalvi, Alice Wells, Daniele Visioni, Ewa M. Bednarz, Douglas G. MacMartin, Walker Lee, and Mari R. Tye

Data sets

SSP2-4.5 Simulations with CESM2(WACCM6) J. Richter and D. Visioni https://doi.org/10.5281/zenodo.6473954

ARISE-SAI-1.5: Assessing Responses and Impacts of Solar climate intervention on the Earth system with Stratospheric Aerosol Injection, with cooling to 1.5C J. Richter and D. Visioni https://doi.org/10.5281/zenodo.6473775

ARISE-SAI_1.5 : CESM2 Extreme Temperature and Precipitation Indices (1.0.0) M. R. Tye https://doi.org/10.5281/zenodo.7552583

ARISE-SAI_1.5: UKESM1 Extreme Temperature and Precipitation Indices M. R. Tye https://doi.org/10.5281/zenodo.7922503

UKESM1 ARISE-SAI climate simulations J. Haywood, A. Jones, and M. Dalvi https://catalogue.ceda.ac.uk/uuid/26b89d8d76bd40bfbaf9fedfa383e9cf

CESM2(WACCM6) SSP2-4 simulations NCAR Climate Data Gateway https://doi.org/10.26024/0cs0-ev98

ARISE-SAI-1.5 simulations NCAR Climate Data Gateway https://doi.org/10.5065/9kcn-9y79

Model code and software

Code to reproduce the figures in "Comparison of UKESM1 and CESM2 Simulations Using the Same Multi-Target Stratospheric Aerosol Injection Strategy" by Henry et al. M. Henry https://github.com/matthewjhenry/arise_comparison_acp

Short summary

Solar climate interventions, such as injecting sulfur in the stratosphere, may be used to offset some of the adverse impacts of global warming. We use two independently developed Earth system models to assess the uncertainties around stratospheric sulfur injections. The injection locations and amounts are optimized to maintain the same pattern of surface temperature. While both models show reduced warming, the change in rainfall patterns (even without sulfur injections) is uncertain.