The source code is cam2_0_2_dev21 with a mod to cldfrc that sets concld to zero.
The source code is cam2_0_2_dev20 with a mod to cldfrc that allows concld to only depend on the mass fluxes from ZM convection.
The source code is cam2_0_2_dev20 with a mod to cldfrc that allows concld to only depend on the mass fluxes from Hack convection.
The source code is cam2_0_2_dev20 with a mod to cldfrc that sets concld to zero. This is the same as the treatment of concld before sci22.