A protocol for model intercomparison of impacts of marine cloud brightening climate intervention

Rasch, Philip J.; Hirasawa, Haruki; Wu, Mingxuan; Doherty, Sarah J.; Wood, Robert; Wang, Hailong; Jones, Andy; Haywood, James; Singh, Hansi

doi:https://doi.org/10.5194/gmd-17-7963-2024

Articles | Volume 17, issue 21

https://doi.org/10.5194/gmd-17-7963-2024

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

https://doi.org/10.5194/gmd-17-7963-2024

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

Articles | Volume 17, issue 21

Model experiment description paper

|

08 Nov 2024

Model experiment description paper |

| 08 Nov 2024

A protocol for model intercomparison of impacts of marine cloud brightening climate intervention

Philip J. Rasch, Haruki Hirasawa, Mingxuan Wu, Sarah J. Doherty, Robert Wood, Hailong Wang, Andy Jones, James Haywood, and Hansi Singh

Data sets

Data for: A protocol for model intercomparison of impacts of Marine Cloud Brightening Climate Intervention H. Hirasawa et al. https://doi.org/10.5281/zenodo.10914383

Data for CESM2 SSP2-4.5 with Modified Biomass Burning Emissions A. Phillips et al. https://doi.org/10.26024/j23t-pc83

Model code and software

CESM source code CESM-CODE https://github.5 com/ESCOMP/CESM

Energy Exascale Earth System Model v3.0.1 E3SM-CODE https://doi.org/10.11578/E3SM/dc.20240930.1

Short summary

We introduce a protocol to compare computer climate simulations to better understand a proposed strategy intended to counter warming and climate impacts from greenhouse gas increases. This slightly changes clouds in six ocean regions to reflect more sunlight and cool the Earth. Example changes in clouds and climate are shown for three climate models. Cloud changes differ between the models, but precipitation and surface temperature changes are similar when their cooling effects are made similar.