Experiment Proposal: Example - Last millennium SAM variability

Earth System Working Group
, , , ,
1

This is an example of an experiment proposal to access ESM Working Group Resources as outlined in the guidelines.

Experiment title: Last millenium SAM variability

Using the last millennium ACCESS-ESM1.5 PMIP4 experiment as control for perturbation experiment to investigate sensitivity of the variability of the Southern Annular Mode.

Scientific justification:

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

How model design will address scientific justification:

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Design:

Model: ACCESS-ESM-1.5
Configuration: GitHub - coecms/esm-pmip-last-mil
Initial conditions: restart from year 250: /g/data/path/to/restart/files
Run plan: 10 member ensemble of 100 model years
Total KSUs required: 10 x 100 x 1.1 KSU/yr = 1.1MSU
Time required: 10 parallel runs of 100 years @ 16 years/day = 7 days
Total storage required: 10 x 100 years @ 50Gb/year = 50TB

2

(An example of information to supply after the run is complete, if there are a lot of replies mark as solution and it will be linked directly below the initial post)

Result

Experiment conducted as described above from 24/5/2023 to 5/6/2023. There were some issues with model instability that required some runs to be restarted with slightly perturbed initial conditions, hence the time taken to run the experiment was longer than expected.

Metadata

Name: access-esm1.5-lastmil-samvar
GitHub repo: https://github.com/randouser/access-esm1.5-lastmil-samvar
Outputs: /g/data/lg87/access-esm/outputs/access-esm1.5-lastmil-samvar
Restarts: /g/data/lg87/access-esm/restarts/access-esm1.5-lastmil-samva
Simulation started: May 2023 (all run on Gadi)
People: Aidan Heerdegen (@Aidan)
Related articles: Alia, S., Smit, H. and Jone, S. J. Per. Res., 99, 2023

Analysis

Here are some embedded plots of important results.

And a link to a jupyter notebook on GitHub with a more thorough analysis.

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Conclusion

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.