Roadmap

Welcome to the CESM3 Diagnostics Roadmap!

Below are our development milestones.

Goal: Minimal diagnostic generation for CESM3 development

• Produce diagnostics from all working groups

• Atmosphere (including chemistry)
• Ocean (including BGC)
• Sea-ice
• Land and river
• Glacier

• Diagnostic Output

• Plots and tables
• Comparison with obs (requires regridding, provided by ESMF?)
• Comparison with one (or numerous) other CESM cases
• HTML output page

• Feature-complete API

• Well-defined environment (available on casper & derecho)
• Can run inside CESM cime workflow (easy to have CESM run package as part of case.submit)
• Can run outside of CESM workflow
• Users can write & run one-off diagnostics scripts
• Well-documented examples of how to run (external API)

• Migrate some ADF/NBscuid functionality to GeoCAT (.viz or .comp)?
• Mechanisms for feedback from developer community (issue tickets & feature requests)

Goal: Diagnostics for CMIP PI run

• Port remaining NCL-based code to python (possibly in GeoCAT)
• Include additional post-processing steps from other projects

• Time series generation is separate effort from Brian Dobbins and CISL
• Data compression (part of CISL time series generation efforts?)
• CMORization is coming from Gary S (?)
• Remapping (ESMF)

• Needed for comparing to observations
• Might help with plotting (CAM-SE grids are unstructured)

• Climatology generation (could be moved to milestone #1 if needed sooner)

• Improve extensibility / add specific diagnostics that are needed but not available

• Include outside packages such as ILAMB, MDTF, CVDP, ESMValTool, DOE extremes packages, Met Plus, MOM6 tools, CMAT, Metrics packages, etc.
• Packages not needed for PI run would be incorporated later

Goal: Diagnostics for CMIP DECK experiments

• Generate figures for CESM3 paper based on PI control

Goal: High resolution /ensemble support

• Would require better parallelization of individual steps
• Support for initialized prediction/large ensembles