This is a three day workshop, with 1.5 days of presentation, and 1.5 – 2 days of joint analysis/hacking. Dyamond (DYnamics of the Atmospheric general circulation Modeled On Non-hydrostatic Domains) is an intercomparison study with Global climate model that can explicitly resolve the major modes of atmospheric heat transport (convection-permitting resolution; 1-5 km). Models participating include: ICON (2.5 and 5 km), NICAM (3.5 and 7 km), FV3 (3.25 km), SAM (4 km), MPAS (7 .5 km), IFS-H (4 and 9 km).