1. Model Development and Application at CCCma Model Development and Application at CCCma John Scinocca CCCma

2. Model Development and Application ● model (physics) development – atmospheric (AGCM) – ocean (OGCM) ● model application (CMIP/IPCC) Past: Focus was on two sequential activities: – 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. 10201211 CCMVal-1CCMVal-2 CMIP3/IPPC4CMIP5/IPPC5 CORDEX CHFP GLACE-2 CMIP5 Decadal SHFP ISVHE IceHFPCFMIP CFMIP phase 2 2000030507010204060809 MPACEGCSS WG2 GCPI GeoMIP ARM GCSS CMIP5 AMIP AEROCOM Phase II MPACEGCSS WG1 TWP–ICE CIRC CGILS MJO–MIP ACCMIP CMAM30 Climate projections Chemistry Climate Modelling Seasonal/Decadal Prediction Model development SCM Model development AGCM Application/MIP Type Model Intercomparison Projects (MIPs) ● CCCma participated ~25 MIPs over the last decade ● number and complexity of the MIPs has been increasing steadily over the last few years. CCMI

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

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

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

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