Introduction
CSIRO and ACCESS-NRI have developed, configured and ran the ESM1.6 spin-up experiments for the upcoming cmip7 contribution.
This thread is intended to document the exact model executables and forcings used for the esm1.6 spin-up experiments (previous example). In particular, changes to the executables, bug corrections and updates can also be documented here.
| Name: | pi_concentrations |
| Years: | 0-222 |
| GitHub repo: | GitHub - ACCESS-NRI/access-esm1.6-configs: Standard ACCESS-ESM1.6 configurations released and supported by ACCESS-NRI |
| Exe versions: | access-esm1p6/pr27-5 |
| Inputs: | /g/data/vk83/configurations/inputs/access-esm1p5/ … /g/data/vk83/prerelease/configurations/inputs/access-esm1p6/ … |
| Outputs: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Restarts: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Brief description: | Spin-up run with the 1 degree ACCESS-ESM-1.6 with 650 years continuous run (as of writing) |
| Simulation started: | 20th December 2024 (all run on Gadi) |
| People: | Pearse Buchanan (@pearseb), ? |
| Linked articles: |
| Years: | 222 - 272 |
| Exe versions: | access-esm1p6/pr31-1 |
| Outputs: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Restarts: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Brief description: | WOMBAT-lite code updated with sinking bugfix. Updated to dev_2025.01.0 |
| Other notes: | |
| People: | Pearse Buchanan (@pearseb), ? |
| Years: | 272 - 352 |
| Exe versions: | access-esm1p6/pr31-3 |
| Outputs: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Restarts: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Brief description: | Updated WOMBAT-lite to dev_2025.01.2 - details? |
| Other notes: | |
| People: | Pearse Buchanan (@pearseb), ? |
| Years: | 352 - 653 |
| Exe versions: | access-esm1p6/pr31-3 |
| Outputs: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Restarts: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Brief description: | At restart 352, we replaced the ALK, DIC, NO3 and O2 tracers with their values from depth indices 15:50 with those from the restart file located here: /g/data/vk83/prerelease/configurations/inputs/access-esm1p6/modern/pre-industrial/restart/2024.12.10/ocean |
| Other notes: | |
| People: | Pearse Buchanan (@pearseb), ? |
| Years: | 653 - 666 |
| Exe versions: | access-esm1p6/pr31-3 |
| Outputs: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Restarts: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Brief description: | At restart 653, we replaced the Fe (iron) tracer with values from depth indices 15:50 with those of the restart file in: /g/data/vk83/prerelease/configurations/inputs/access-esm1p6/modern/pre-industrial/restart/2024.12.10/ocean |
| Other notes: | |
| People: | Pearse Buchanan (@pearseb), ? |
| Years: | 666 - 678 |
| Exe versions: | access-esm1p6/pr31-3 |
| Outputs: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Restarts: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Brief description: | At restart 666, we increased the scavenging of iron onto particles by an order of magnitude from kscav_dfe = 0.0001 to kscav_dfe = 0.001. This was done in the hope that excess Fe building in the ocean interior will be removed. |
| Other notes: | |
| People: | Pearse Buchanan (@pearseb), ? |
| Years: | 678 - 840 |
| Exe versions: | access-esm1p6/pr31-3 |
| Outputs: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Restarts: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations-expt-c55f7217 |
| Brief description: | At restart 678, we increased the remineralisation rate coefficient (detlrem) from 0.4 to 0.5 (by 25%) to maintain more organics in the upper ocean, elevate productivity, but also reduce deoxygenation in the deep. This may not be enough, but just trying it right now. |
| Other notes: | |
| People: | Pearse Buchanan (@pearseb), ? |
| Years: | 840 - 902 |
| Exe versions: | access-esm1p6/pr31-3 |
| Outputs: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations_test3-restart-840-35bbe5a7 |
| Restarts: | /scratch/p66/pjb581/access-esm/archive/pi_concentrations_test3-restart-840-35bbe5a7 |
| Brief description: | At restart 840, we altered the parameters for the BGC model (WOMBAT-lite). We turned off burial of tracers and updated the parameter set. The parameters that were updated and their new values: - burial = .false.- conservetracers = .false.- bbioh = 1.060- phykf = 1.0- phylmor = 1.69e-7- zooassi = 0.30- zooepsmin = 2.e-8- zooepsmax = 2.5e-6- zoolmor = 3.1e-7- zooqmor = 9.25e-6- wdetbio = 2.32e-4- wcaco3 = 1.5e-4- ligand = 0.4- kscav_dfe = 0.005compared to their previous values of: - burial = .true.- conservetracers = .true.- bbioh = 1.064- phykf = 1.1- phylmor = 1.562e-7- zooassi = 0.25- zooepsmin = 6.e-8- zooepsmax = 7.0e-7- zoolmor = 3.3e-7- zooqmor = 9.5e-6- wdetbio = 3.1e-4- wcaco3 = 1.6e-4- ligand = 0.5- kscav_dfe = 0.001 |
| Other notes: | |
| People: | Pearse Buchanan (@pearseb), ? |
For further run details, the payu experiment configuration folder with associated run commits is here. See important_run_details.txt for further details.
| Years: | 0 - 235 |
| Exe versions: | access-esm1p6/dev_2025.04.000 |
| Outputs: | /scratch/p66/jxs599/access-esm/archive/AprilSpinUp-AprilSpinUp-56aae814 |
| Restarts: | /scratch/p66/jxs599/access-esm/archive/AprilSpinUp-AprilSpinUp-56aae814 |
| Brief description: | Using restart from Pearse’s long run at year 902, April spin-up conducted by Jhan, we reset the deep ocean concentrations of Alk, DIC, NO3, O2, and Fe tracers. Specifically, these were from depth levels 15:50, and they were reset to their original fields in /g/data/vk83/prerelease/configurations/inputs/access-esm1p6/modern/pre-industrial/restart/2024.12.10/ocean/ocean_wombatlite.res.nc |
| Other notes: | Relative to UM executable used in Pearse’s run, our UM executable includes many modifications between Dec 5 th and April 1st. Notably also is LUH3 based land cover map and CMIP7 revised solar constant |
| People: | Ian Harman (@har917), Tilo Ziehn (@tiloz), Rachel Law (@rml599gh), Jhan (@JhanSrbinovsky) |
| Years: | 236 - present (=636 @May19th) |
| Exe versions: | access-esm1p6/dev_2025.04.000 |
| Outputs: | /scratch/p66/jxs599/access-esm/archive/AprilSpinUp-AprilSpinUp-56aae814 |
| Restarts: | /scratch/p66/jxs599/access-esm/archive/AprilSpinUp-AprilSpinUp-56aae814 |
| Brief description: | Following above run: altered the parameters for the BGC model (WOMBAT-lite). We turned off burial of tracers and updated the parameter set. Parameters updated to new values in ocean_field table to match Pears’s long run (above) |
| Other notes: | Relative to UM executable used in Pearse’s run, our UM executable includes many modifications between Dec 5 th and April 1st. Notably also is LUH3 based land cover map and CMIP7 revised solar constant |
| People: | Ian Harman (@har917), Tilo Ziehn (@tiloz), Rachel Law (@rml599gh), Jhan (@JhanSrbinovsky) |