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C12 TURBULENT DIFFUSION PARAMETERS
*
* AHO: CONSTANT HORIZONTAL MOMENTUM AND MASS DIFFUSIVITY m*m/s
* AHD: DIMESIONLESS HORIZONTAL MOMENTUM DIFFUSIVITY (ONLY FOR ISHDMF>0)
* AVO: BACKGROUND, CONSTANT OR EDDY (KINEMATIC) VISCOSITY m*m/s
* ABO: BACKGROUND, CONSTANT OR MOLECULAR DIFFUSIVITY m*m/s
* AVMX: MAXIMUM KINEMATIC EDDY VISCOSITY m*m/s (DS-INTL)
* ABMX: MAXIMUM EDDY DIFFUSIVITY m*m/s (DS-INTL)
* VISMUD: CONSTANT FLUID MUD VISCOSITY m*m/s
* AVCON: EQUALS ZERO FOR CONSTANT VERTICAL VISCOSITY AND DIFFUSIVITY
* WHICH ARE SET EQUAL TO AVO AND ABO, OTHERWISE SET TO 1.0
* ZBRWALL: SIDE WALL LOG LAW ROUGHNESS HEIGHT. USED WHEN HORIZONTAL
* MOMENTUM DIFFUSION IS ACTIVE AND AHO OR AHD ARE NONZERO
*
C12 AHO AHD AVO ABO AVMX ABMX VISMUD AVCON ZBRWALL