Cloud coefficients for parametrizations

CRTM
1

Hi,
I’ve recently compiled version 3 of CRTM and I wanted to use the cloud coefficient developed for WSM6 parametrization but I receive the following error when using the IR channels of GOES16-ABI

forrtl: severe (408): fort: (3): Subscript #1 of the array FREQUENCY_IR has value -2 which is less than the lower bound of 1

Inspecting the coefficients I found that those files have fewer radii and frequencies than the default

ncdump -h CloudCoeff.nc4
netcdf CloudCoeff {
dimensions:
n_MW_Frequencies = 31 ;
n_MW_Radii = 10 ;
n_IR_Frequencies = 61 ;
n_IR_Radii = 10 ;
n_Temperatures = 5 ;
n_Densities = 3 ;
n_IR_Densities = 4 ;
n_Legendre_Terms = 39 ;
n_Phase_Elements = 1 ;

ncdump -h CloudCoeff.WSM6.MieSphere.nc4
netcdf CloudCoeff.WSM6.MieSphere {
dimensions:
n_MW_Frequencies = 6 ;
n_MW_Radii = 10 ;
n_IR_Frequencies = 1 ;
n_IR_Radii = 1 ;
n_Temperatures = 5 ;
n_Densities = 3 ;
n_IR_Densities = 4 ;
n_Legendre_Terms = 39 ;
n_Phase_Elements = 1 ;

Is the error I get related to that?

Cheers
Federico

2

The microphysics changes are only relevant to microwave, no infrared for these tables. I realize that’s a limitation, but that’s what we received from our partner.

Please feel free to reach out to me directly (bjohns@ucar.edu) with any additional questions.

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