Date: 7/12/2023
Participants: 13
Chair: @LaurieM
Admin
- For the next meeting (29th) we will have a shared meeting with Forecasting and Prediction Working Group to discuss the Triple La Niña experiment, and an ACCESS-S2 User Training Workshop. Will spend 20 minutes with some discussion of where to find the data, how to analyse and some discussion of analysis and ideas for where to focus that analysis.
- @sebmckenna happy to talk about ACCESS-CM2 pacemaker experiments.
Shared experiments/ACCESS-NRI resources
- ACCESS-NRI Merit Allocation guidelines are available. The requirements to access time are very minimal compared to MAS applications. Come and use the resources on offer!
- ESM project
lg87/g/datastorage: 30TB used out of 50TB. 116KSU used 758KSU remaining. - @ariaan could use some SUs. Will put up some information about them.
- WG needs more
/g/datastorage space. Take to SAC.
Freshwater forcing in sub-polar North-Atlantic
Status of @gpontes experiment.
(Apologies, the top and bottom of the video have been clipped)
Freshwater forcing in sub polar northatlantic. Just esm-ssp585-45 computed under lg87. Including historical also under /g/data/lg87.
Some issues restarting historical experiments from other runs. Reported on hive. Ran another historical ensemble for historical. Also available.
Started 4-member ensemble for historical and SSP. HI-X-grm, ssp585-X-dgrm. 2-member ensemble ssp585-X-cgrm.
@tiloz is historical a new ensemble member? Restarted from a different time? Yes.
@tiloz asking if ssp585 is concentration driven. Confirmed yes, not emissions driven.
Was using the warm-start.sh to rebuild experiment for payu. Got a calendar error. Works fine if all processes using payu.
@ariaan did restart historical runs using payu from older non-payu runs. Might have been a date issue. @holger assisted.
@ariaan Are ensemble members of 2 and 4 enough? Need larger ensembles? Would it be good to have historical members branched further apart to have different AMOC states? Would be good to have more ensemble members.
@gpontes Could do so if community thinks it is useful. Ideally would be 10 members. Restarted experiments from 1950. Perturb IC and run 10 years, then begin FW perturbation.
@ariaan GFDL models have strong convection in southern ocean (Amundsen and Ross Seas). For some things in the deep ocean models have a specific path.
@gpontes Now investigating teleconnections between AMOC and southern ocean.
@RachelLaw ssp585 is the highest scenario. Plans for a more moderate scenario?
@gpontes Other scenarios not set up for payu. Mostly looking at coming decades. 20-30 years doesn’t matter too much. All simulations go to 2100. Focus on coming decades
@LaurieM Simuations quite idealised. Contentious about how to design the FW experiment.
@RachelLaw also having issues restarting payu from a different restart.
@gpontes could increase number of members If group wants to do it.
ACCESS-ESM1.5 – ACCESS-NRI supported release
@Aidan updated us on plans for an ACCESS-NRI supported version of ACCESS-ESM1.5. It will have:
spackbuild system- build-CI testing
- released experimental configurations utilising
payu - full experiment provenance
- automated reproducibility testing
This topic on the forum gives an overview of the project and will be used as the main place to find information about the progress of the release
(Apologies, the top and bottom of the video have been clipped)
What’s going on?
@RachelLaw: the CMIP panel want feedback on the AR7 fast-track design
This is a wiki post , if you want to update any of the details in these meeting notes, or to add your own recollection of what was discussed then edit me rather than replying.