GFDL - Geophysical Fluid Dynamics Laboratory

FV3: Finite-Volume Cubed-Sphere Dynamical Core

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The Dynamical Core Intercomparison Project (DCMIP)  in June 2016 consisted of a series of idealized tests for a dozen global climate and weather models, with a particular emphasis on non-hydrostatic simulation.

Moist Baroclinic Wave Test with Terminator Test

Over 30 day simulation with 1 degree resolution.

 

Results at Day 9

Figure 2. Uniform grid run with a resolution of ~100 km.
Figure 3. Stretched grid run with the coarse resolution of 100 km and fine resolution of 25 km centered over the location of the baroclinic wave at days 7-10.

Idealized Tropical Cyclone Test

Figure 4. Day 8 of a uniform simulation run at 0.5-degree resolution.
Figure 5. Same as Fig. 4, but for variable resolution.
Figure 6. 2D view (radius v. height) of tangential wind (left), radial wind (center), and temperature anomaly (right) for day 8 of the variable resolution simulation.

Supercell Test

Figure 7.  A 1 km simulation showing cloud liquid water mixing ratio at 5 minute intervals overlayed on bottom level temperature.
Figure 8. 5 km vertical velocity (m/s) (first row), rain water (kg/kg) (second row), 2500 m vertical velocity (m/s) (third row). Each column shows a different horizontal resolution: 0.5 km, 1 km, 2 km, and 4 km (left to right).

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