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Adding new molecule (OCS) to the initial state file

M

myous005@odu_edu

New Member
Greeting,I'm trying to run the WACCM for OCS molecule and two of its isotopologues. however, in the input data file for the initial state (cami_2000-01-01_10x15_L66_c041121.nc), doesn't include (lev='hybrid level at midpoints (1000*(A+B)) matrix) for OCS molecule. my question would be how can I add it for a new molecule such as OCS to the input Netcdf file? or is it necessary to have lev matrix for OCS?below is the content of the Netcdf file.Format:           classicDimensions:           time = 1           lat  = 19           lon  = 24           lev  = 66           slon = 24           slat = 18           ilev = 67Variables:    LANDM_COSLAT           Size:       24x19x1           Dimensions: lon,lat,time           Datatype:   double           Attributes:                       long_name  = 'land ocean transition mask: ocean (0), continent (1), transition (0-1)'                       units      = 'none'                       _FillValue = 1e+36                       from_hires = 'true'    time                   Size:       1x1           Dimensions: time           Datatype:   single           Attributes:                       long_name = 'time'                       units     = 'days since 0000-01-01 00:00:00'                       calendar  = 'noleap'    lat                    Size:       19x1           Dimensions: lat           Datatype:   single           Attributes:                       long_name = 'latitude'                       units     = 'degrees_north'    lon                    Size:       24x1           Dimensions: lon           Datatype:   single           Attributes:                       long_name = 'longitude'                       units     = 'degrees_east'    Q                      Size:       24x66x19x1           Dimensions: lon,lev,lat,time           Datatype:   double           Attributes:                       long_name = 'Q constituent tracer'                       units     = 'kg/kg'    lev                    Size:       66x1           Dimensions: lev           Datatype:   single           Attributes:                       long_name = 'hybrid level at midpoints (1000*(A+B))'    H2O                    Size:       24x66x19x1           Dimensions: lon,lev,lat,time           Datatype:   double           Attributes:                       long_name = 'H2O'                       units     = 'kg/kg'    CO2                    Size:       24x66x19x1           Dimensions: lon,lev,lat,time           Datatype:   double           Attributes:                       long_name = 'CO2'                       units     = 'kg/kg'....    Regards, 
 
mmills

mmills

CSEG and Liaisons
Staff member
Please post your questions about WACCM in one of the WACCM forums so that I will see them:https://bb.cgd.ucar.edu/forums/science-issues-0https://bb.cgd.ucar.edu/forums/software-and-run-time-issues-0If your IC file does not include OCS, you can run the model for a decade or more to wait for OCS to be advected from the surface (lower boundary condition) to the stratosphere. Alternately, you could add OCS to your IC file as a uniform value equal to your lower boundary condition mixing ratio. It would quickly oxidize in the stratosphere to produce a reasonable profile. Or you can provide a more realistic initial condition based on observations or other information.
 
mmills

mmills

CSEG and Liaisons
Staff member
Please post your questions about WACCM in one of the WACCM forums so that I will see them:https://bb.cgd.ucar.edu/forums/science-issues-0https://bb.cgd.ucar.edu/forums/software-and-run-time-issues-0If your IC file does not include OCS, you can run the model for a decade or more to wait for OCS to be advected from the surface (lower boundary condition) to the stratosphere. Alternately, you could add OCS to your IC file as a uniform value equal to your lower boundary condition mixing ratio. It would quickly oxidize in the stratosphere to produce a reasonable profile. Or you can provide a more realistic initial condition based on observations or other information.
 
mmills

mmills

CSEG and Liaisons
Staff member
Please post your questions about WACCM in one of the WACCM forums so that I will see them:https://bb.cgd.ucar.edu/forums/science-issues-0https://bb.cgd.ucar.edu/forums/software-and-run-time-issues-0If your IC file does not include OCS, you can run the model for a decade or more to wait for OCS to be advected from the surface (lower boundary condition) to the stratosphere. Alternately, you could add OCS to your IC file as a uniform value equal to your lower boundary condition mixing ratio. It would quickly oxidize in the stratosphere to produce a reasonable profile. Or you can provide a more realistic initial condition based on observations or other information.
 
mmills

mmills

CSEG and Liaisons
Staff member
Please post your questions about WACCM in one of the WACCM forums so that I will see them:https://bb.cgd.ucar.edu/forums/science-issues-0https://bb.cgd.ucar.edu/forums/software-and-run-time-issues-0If your IC file does not include OCS, you can run the model for a decade or more to wait for OCS to be advected from the surface (lower boundary condition) to the stratosphere. Alternately, you could add OCS to your IC file as a uniform value equal to your lower boundary condition mixing ratio. It would quickly oxidize in the stratosphere to produce a reasonable profile. Or you can provide a more realistic initial condition based on observations or other information.
 
mmills

mmills

CSEG and Liaisons
Staff member
Please post your questions about WACCM in one of the WACCM forums so that I will see them:https://bb.cgd.ucar.edu/forums/science-issues-0https://bb.cgd.ucar.edu/forums/software-and-run-time-issues-0If your IC file does not include OCS, you can run the model for a decade or more to wait for OCS to be advected from the surface (lower boundary condition) to the stratosphere. Alternately, you could add OCS to your IC file as a uniform value equal to your lower boundary condition mixing ratio. It would quickly oxidize in the stratosphere to produce a reasonable profile. Or you can provide a more realistic initial condition based on observations or other information.
 
mmills

mmills

CSEG and Liaisons
Staff member
Please post your questions about WACCM in one of the WACCM forums so that I will see them:https://bb.cgd.ucar.edu/forums/science-issues-0https://bb.cgd.ucar.edu/forums/software-and-run-time-issues-0If your IC file does not include OCS, you can run the model for a decade or more to wait for OCS to be advected from the surface (lower boundary condition) to the stratosphere. Alternately, you could add OCS to your IC file as a uniform value equal to your lower boundary condition mixing ratio. It would quickly oxidize in the stratosphere to produce a reasonable profile. Or you can provide a more realistic initial condition based on observations or other information.
 
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