ACCESS-OM2 0.1 degree global model output (interannual forcing simulation)

Updated: 2021-04-20

ACCESS-OM2-01 is COSIMA's flagship high-resolution ocean-sea ice model. It uses 75 vertical levels and 0.1° lateral resolution at the Equator, with a latitude-longitude grid from Antarctica to 65°N (with a Mercator projection north of 65°S), and a tripolar grid north of 65°N. This dataset is from four consecutive 61-year cycles of ACCESS-OM2-01 run with JRA55-do v1.4.0 interannually-varying forcing from 1 Jan 1958 to 1 Jan 2019, with all solid runoff converted to liquid runoff with no heat transfer. Cycle 1 is a 61-year spin up from WOA13v2 potential temperature (NB: should have been conservative temperature) and practical salinity initial conditions. Subsequent cycles use the final state of the previous cycle as the initial condition. There is also an extension of cycle 4 to the end of 2023, using v1.5.0 and v1.5.0.1 forcing. The ACCESS-OM2 global model configuration is based on that described in Kiss et al. (2020), https://doi.org/10.5194/gmd-13-401-2020, but with many improvements that are detailed in the Supplementary Materials of Solodoch et al. (2022), https://doi.org/10.1029/2021GL097211. Cycle 4 and its extension include WOMBAT biogeochemistry as described by Hayashida et al. (2023) http://dx.doi.org/10.1029/2023JC019697 and Menviel et al. (2023) https://doi.org/10.5194/egusphere-2023-390. Further information is provided in http://cosima.org.au/index.php/2020/07/29/data-available-0-1-1958-2018-access-om2-iaf-run/ and https://forum.access-hive.org.au/t/access-om2-control-experiments/258#p-747-iaf-11 and the metadata.yaml files in the data directories. For detailed information on the run configurations and history, please see https://github.com/COSIMA/01deg_jra55_iaf/tree/01deg_jra55v140_iaf https://github.com/COSIMA/01deg_jra55_iaf/tree/01deg_jra55v140_iaf_cycle2 https://github.com/COSIMA/01deg_jra55_iaf/tree/01deg_jra55v140_iaf_cycle3 https://github.com/COSIMA/01deg_jra55_iaf/tree/01deg_jra55v140_iaf_cycle4 https://github.com/COSIMA/01deg_jra55_iaf/tree/01deg_jra55v140_iaf_cycle4_jra55v150_extension