KevinViner-NOAA

Implement Rayleigh damping on vertical velocity only through semi-implicit solver

1

**Is your feature request related to a problem? Please describe.** Damping of the horizontal velocity, as is done currently, is more consistent with a hydrostatic model. A nonhydrostatic model can...

Implement option to decenter the application of physics tendencies to achieve higher global accuracy

9

**Is your feature request related to a problem? Please describe.** Application of physics tendencies only at the end of the dynamics represents a first-order accurate coupling. By applying the physics...

fill negative tracers in chgres

6

Some (All?) old output of FV3GFS has some negative tracer values. These values get interpolated, but not filled, when using chgres and are read into the model as initial conditions....