Differences between 'turning down the sun' and stratospheric sulfate injection

Motivating questions

• How effective is sulfate geoengineering at moderating changes in temperature and precipitation extremes both regionally and seasonally? (Compare SSP585/SSP242 and G6sulfur)

• How do differences between sulfate geoengineering and solar dimming affect these results? (Compare G6solar and G6sulfur). For example, there is evidence that the stratospheric heating from aerosol injection affects stratospheric-tropospheric coupling and leads to Eurasian winter warming.

Metrics used for temperature: daily maximum/minimum in DJF/JJA.

Metrics used for precipitation: Rx5day (Monthly maximum consecutive 5-day precipitation) and CWD (Maximum length of wet spell, maximum number of consecutive days with RR ≥ 1mm)

Contributors

• Mira Adhikari
• Emily Ball
• Matthew Henry
• Eunice Lo
• Carla Roesch

What was done

Reproduce simple analysis figures for now on comparing changes in temperature and precipitation (and accounting for seasonality) between G6Solar and G6Sulfur, using UKESM model (only one available on Jasmin).

Outcomes

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About this repo

There are further README files in key directories.

Key files

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How to reproduce our outputs

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Repo structure

.
├── notebooks
│   ├── [...].ipynb
│   └── [...].ipynb
│           The Jupyter Notebooks that we created
│
├── code
│   ├── [...].py
│   └── [...].py
│           Any code (Python or otherwise) that we created that doesn't
│           sit within a Notebook
│
├── results
│   ├── [...].pdf
│   └── [...].png
│           The key figures that we produced
│
├── data
│   ├── raw_data
│   │       Any data we used that didn't come from JASMIN
│   │
│   └── processed_data
│           Any output data that we produced
│
├── environment.yml
└── environment_frozen.yml
        The libraries and versions that we used

Next steps for our project

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Check our Hackathon Resources page for further guidance, including our participant guide and recommendations for using Git and GitHub in your project team.

This template repo was created for the CMIP6 Data Hackathon by James Thomas and Will Seviour.