PROJECT YEAR 1 (ESTABLISH AN INITIAL WORKFLOW) GENERATE LONG-TERM LARGE-SCALE FORCING FROM MERRA2 (MATSUI) GENERATE OBSERVATION COMPOSITES FROM NPOL AND C-S SEPARATION MAP (WOLFF) SET UP GCE SIMULATIONS WITH THE 4ICE MICROPHYSICS SCHEMES FOR MONTH-LONG CASES (LANG AND MOHR) ESTABLISH A GCE EVALUATION WORKFLOW WITH NPOL (ALL) PROJECT YEAR 2 (ADD MORE RADAR AND LARGE-SCALE FORCING INTO THE WORKFLOW) GENERATE LONG-TERM LARGE-SCALE FORCING FROM ERA5 (MATSUI) ADD ENSEMBLE MEMBERS OF THE GCE SIMULATIONS WITH MERRA2/ERA5 LARGE-SCALE FORCING (LANG AND MOHR) GENERATE OBSERVATION COMPOSITES FROM D3R AND MRR (WOLFF) ESTABLISH GCE EVALUATION WORKFLOW WITH D3R AND MRR (ALL) PROJECT YEAR 3 (COMPLETE THE END-TO-END WORKFLOW) GENERATE OBSERVATION COMPOSITES FROM GROUND IN-SITU DATA AND SATELLITE-BASED INSTRUMENTS (WOLFF) COMPLETE THE GCE ENSEMBLE PILOT SIMULATIONS WITH MORRISON AND RAMS MICROPHYSICS SCHEMES AND IMPROVE 4ICE MICROPHYSICS SCHEME (LANG AND ALL) COMPLETE GCE EVALUATION WORKFLOW WITH RADAR AND SATELLITE DATA (MATSUI AND ALL)