PAMIP Experiment Protocol

Coordinated model experiments in PAMIP are listed in the following tables:

  1. 1. Atmosphere-only time slice experiments
  2. 2. Coupled ocean-atmosphere time slice experiments
  3. 3. Atmosphere-only time slice experiments to investigate regional forcing
  4. 4. Atmosphere-only time slice experiments to investigate the role of the background state
  5. 5. Atmosphere-only transient experiments
  6. 6. Coupled ocean-atmosphere transient experiments

More information regarding experiment protocol including initial condition and ice-constraining approaches in the coupled ocean-atmosphere models can be found at the link below:
https://www.geosci-model-dev.net/12/1139/2019/

The SST and sea ice forcing files can be downloaded from input4MIPs
https://esgf-node.llnl.gov/projects/input4mips/

1. Atmosphere-only time slice experiments
No. Experiment Name Description Note Tier Start year Years Min. ensemble
1.1pdSST-pdSICTime slice forced by climatological monthly mean SST and SIC for the present day (pd) Present day SST and SIC120001100
1.2piSST-piSICTime slice forced by climatological monthly mean SST and SIC for preindustrial (pi) conditions Preindustrial SST and SIC220001100
1.3pdSST-pdSICTime slice forced by pi SST and pd SIC Different SST relative to 1.1 to investigate the role of SSTs in polar amplfication120001100
1.4futSST-pdSICTime slice forced by pd SIC and future SST representing 2 degree global warming (fut) 220001100
1.5pdSST-piArcSICTime slice forced by pd SST and pi Arctic SIC Different Arctic SIC relative to 1.1 to investigate the impact of present day and future Arctic sea ice , and the role of Arctic SIC in polar amplification120001100
1.6pdSST-futArcSICTime slice forced by pd SST and fut Arctic SIC 120001100
1.7pdSST-piAntSICTime slice forced by pd SST and pi Antarctic SIC Different Antarctic SIC relative to 1.1 to investigate the impact of present day and future Arctic sea ice , and the role of Arctic SIC in polar amplification120001100
1.8pdSST-futAntSICTime slice forced by pd SST and fut Antarctic SIC 120001100
1.9pdSST-pdSICSITTime slice forced by pd sea ice thickness (SIT) in addition to SIC and SST investigate the impacts of sea ice thickness changes320001100
1.10pdSST-futArcSICSITTime slice forced by pd SST and fut Arctic SIC and SITInvestigate the impacts of sea ice thickness changes320001100
2. Coupled ocean-atmosphere time slice experiments
No. Experiment Name Description Note Tier Start year Years Min. ensemble
2.1pa-pdSICCoupled time slice constrained by pdSIC220001100
2.2pa-piArcSICCoupled time slice with pi Arctic SICAs 1.5 and 1.6 but with coupled model220001100
2.3pa-futArcSICCoupled time slice with fut Arctic SIC220001100
2.4pa-piAntSICCoupled time slice with pi Antarctic SICAs 1.7 and 1.8 but with coupled model220001100
2.5pa-futAntSICCoupled time slice with fut Antarctic SIC220001100
3. Atmosphere-only time slice experiments to investigate regional forcing
No. Experiment Name Description Note Tier Start year Years Min. ensemble
3.1pdSST-futOkhotskSICTime slice forced by pd SST and fut Arctic SIC only in the Sea of OkhotskInvestigate how the atmospheric response depends on the geogrpahic pattern of Arctic sea ice forcing320001100
3.2pdSST-futBKSeasSICTime slice forced by pd SST and fut Arctic SIC only in the Barents/Kara Seas 320001100
4. Atmosphere-only time slice experiments to investigate the role of the background state
No. Experiment Name Description Note Tier Start year Years Min. ensemble
4.1modelSST-pdSICTime slice forced by pd SIC and pd SST from coupled model (2.1) rather than observationsIn conjunction with experiment 1 and 2, isolate the effect of the background state from the effect of coupling320001100
4.2modelSST-futArcSICTime slice forced by fut Arctic SIC and pd SST from coupled model (2.1) rather than observations 320001100
5. Atmosphere-only transient experiments
No. Experiment Name Description Note Tier Start year Years Min. ensemble
5.1amip-climSSTRepeat CMIP6 AMIP (1979-2014) but with climatological monthly mean SSTUse CMIP6 AMIP as the control, investigate transient response, individual years, and the contributions of SST and SIC to recent climate change31979363
5.2amip-climSICRepeat CMIP6 AMIP (1979-2014) but with climatological monthly mean SIC31979363
6. Coupled ocean-atmosphere transient experiments
No. Experiment Name Description Note Tier Start year Years Min. ensemble
6.1pa-pdSIC-extCoupled model extended simulation constrained with pd sea iceExperiments to investigate the decadal and longer impacts of Arctic and Antarctic sea ice320001001
6.2pa-futArcSIC-extCoupled model extended simulation constrained with fut Arctic sea ice320001001
6.3pa-futAntSIC-extCoupled model extended simulation constrained with fut Antarctic sea ice320001001

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