7 April
Aidan, Anton, Paul, Jhan, Lachlan, Martin, Claire, Rachel, Dougie, Pearse
New control runs with time profiles updated
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Restarted piControl+concentrations & emissions, from old year 200, and set back to 1. (So have upset the leap year sequenc)
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Appears to have changed answers over restarts in piControl+emissions ?
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Jhan to create an issue with exact configs compared
Some candidates:
- possibly spack 0.22 to 1.1 wasn’t reproducible
- check determinism over first 4 years - does this appear in 4th year? then it’s due to leap years
Nitrogen v2
No obvious impacts in Rachel’s analysis - we don’t know what we don’t know about it yet though (of course)
We like Nitrogen v1, but possibly this would be inconsistent with forcing in Scenarios - so as there apepars to be no impact, well update piControl+emissions to v2 (and all historical and all scenarios) - Does this make comparison between +emissions and +concentrations harder ?
Jhan will also start a parallel run with piControl+concentrations with Nitrogen v2 - spencer will make a restart for this.
Emissions driven historial
- Trying to understant initial wood product pool size
- There is some drift in CO2 in piControl, is this important for choosing start year for ensembles ?
Ensembles: - planned for 10-30 realisations of emissions-driven historical experiments and scenarios
Aidan stresses pushes payu runlogs to github.
See How to preserve reproducibility when applying perturbations in the event of a numerical instability crash - #8 by Aidan for committing when doing a pertubation.