Model Development and Application at CCCma

1. Model Development and Application at CCCma John Scinocca CCCma

2. Model Development and Application Past: Focus was on two sequential activities: ● model (physics) development – atmospheric (AGCM) – ocean (OGCM) ● model application (CMIP/IPCC) – finalize AGCM and OGCM – tune CGCM – set up and execute climate projection runs each required an enormous technical effort and so model development and application were performed sequentially on the IPCC cycle (~5-7y) problematic: – model development is never finished – tight time line meant CGCM was never well tested – not a viable approach for the increasing number and complexity of applications (science, policy, MIPS, operations)

3. CHFP CMIP5 Decadal SHFP MPACE MPACE Application/MIP Type GCPI Climate projections Chemistry Climate Modelling CGILS CIRC Seasonal/Decadal Prediction Model development AGCM Model development SCM ● CCCma participated ~25 MIPs over the last decade ● number and complexity of the MIPs has been increasing steadily over the last few years. Model Intercomparison Projects (MIPs) 2000 01 02 03 04 05 06 07 08 09 10 11 2012 ARM GCSS CCMVal-1 CCMVal-2 CORDEX CMIP3/IPPC4 CMIP5/IPPC5 CMIP5/IPPC5 GCSS WG1 GLACE-2 CFMIP IceHFP CFMIP phase 2 GCSS WG2 GeoMIP ISVHE AEROCOM Phase II TWP–ICE ACCMIP MJO–MIP CMAM30 CMIP5 AMIP CCMI

4. CMIP5 GEOMIP MJO-DPIP CORDEX CCMVal-1 CCMVal-2 CCMI ACCMIP CTEM5 CTEM5 CMAM30 CTEM SHFP CHFP GLASE-2 CMIP5 IceHFP CCCMa Model Development Current Model Suite CMIP6 Model Suite Unification Development CanESM4 – carbon cycle – ocean model (NEMO) – strat/trop chemistry – AGCM dynamical core AGCM4 CanESM5 CMOC OGCM4 – AGCM physics (eg aerosols, clouds) CanRCM4 – land surface CMAM – sea ice AGCM5 – ocean/land biogeo- chemical physics AGCM4 COUPLER CTEM5 CMOC5 OGCM5 CMAM CanRCM5 Strat/Meso Chem CMAM AGCM5 AGCM3 CanSIPS CanCM5 CanSIPS CanCM3 CanCM4 CanCM3 CanCM4 CMAM AGCM3 AGCM4 AGCM3 AGCM4 AGCM5 COUPLER COUPLER COUPLER COUPLER COUPLER CMOC5 OGCM3 OGCM4 OGCM3 OGCM4 OGCM5

6. 18 months 18 months (Oct/13) CanAM4.2 CanAM4.3 CanOM4.2 CanOM4.3 CTEM4.2 CTEM4.3 CanESM4.1 CanESM4.2 CanSIPS4.1 CanSIPS4.2 CanRCM4.1 CanRCM4.2 CanESM4.1 CanSIPS4.1 CanRCM4.1 Science Innovation Model Development 12 months 12 months physics development development/tuning tuning then documenting simulations documenting simulations locked physics locked parameters CCCma 18 Month Cycle of Model Version Development 18 months (Oct/10) (Apr/12) CanAM4.1 Science Innovation CanOM4.1 CTEM4.1 Model Development CanESM4.0 (CanESM2) Model Application CanSIPS4.0 (CanSIPS) CanRCM4.0 (CanRCM4) Model Version 4.0 (CMIP5) 4.1 4.2 4.3

7. 18 months 18 months (Oct/13) CanAM4.2 CanAM4.3 CanOM4.2 CanOM4.3 CTEM4.2 CTEM4.3 CanESM4.1 CanESM4.2 CanSIPS4.1 CanSIPS4.2 CanRCM4.1 CanRCM4.2 CanESM4.1 CanSIPS4.1 CanRCM4.1 CCCma 18 Month Cycle of Model Version Development 18 months (Oct/10) (Apr/12) CanAM4.1 Science Innovation CanOM4.1 CTEM4.1 Model Development CanESM4.0 (CanESM2) Model Application CanSIPS4.0 (CanSIPS) CanRCM4.0 (CanRCM4) Documenting simulations and their analysis are critical components of development cycle!

8. Application of CCCma models in support of Network Projects ● CCCma and Network partners collaborate on design of experiments and simulations – define work required to set up model to perform experiments – define output required (relative to CMIP5) ● CCCma scientists work with support staff to perform experiments – schedule work required to set up end execute model simulations – execution of simulations undertaken by support staff – model is executed and diagnosed creating time series on-the-fly based on CMIP5 protocols ● experiment output, in the form of NetCDF time series data, is made available to network partners through public ftp from CMC servers