[gradsusr] Creating a netcdf with a mercator projection, or a reflectivity grib2 file

[Thomas Robinson]

Wesley,

Thank you, you are a life saver.

Summary:
My problem was that I used *g2grb.gs* to create a *grib2 output* file using
grads.  My variable is *reflectivity* and I needed to find a suitable *grib
name* for the reflectivity.  The names are listed below.

-Tom

On Fri, Sep 28, 2012 at 1:55 AM, Wesley Ebisuzaki <wesley.ebisuzaki at noaa.gov
> wrote:

> Tom,
>
>
> |  I can create a grib2 file with reflectivity as the variable.  I used
> g2grb.gs to do this, but there is no standard grib name for reflectivity
>
> How about:
>
> gribtab.dat:{ 0, 1, 0, 0, 15, 1, "BREF", "Base Reflectivity", "dB"},
> gribtab.dat:{ 0, 1, 0, 0, 15, 4, "LMAXBR", "Layer Maximum Base
> Reflectivity", "dB"},
> gribtab.dat:{ 0, 1, 0, 0, 15, 9, "RFCD", "Reflectivity of Cloud
> Droplets    Validation", "dB"},
> gribtab.dat:{ 0, 1, 0, 0, 15, 10, "RFCI", "Reflectivity of Cloud Ice
> Validation", "dB"},
> gribtab.dat:{ 0, 1, 0, 0, 15, 11, "RFSNOW", "Reflectivity of Snow
> Validation", "dB"},
> gribtab.dat:{ 0, 1, 0, 0, 15, 12, "RFRAIN", "Reflectivity of Rain
> Validation", "dB"},
> gribtab.dat:{ 0, 1, 0, 0, 15, 13, "RFGRPL", "Reflectivity of Graupel
> Validation", "dB"},
> gribtab.dat:{ 0, 1, 0, 0, 15, 14, "RFHAIL", "Reflectivity of Hail
> Validation", "dB"},
> gribtab.dat:{ 0, 1, 0, 0, 16, 0, "REFZR", "Equivalent radar reflectivity
> factor for rain", "mm^6/m^3"},
> gribtab.dat:{ 0, 1, 0, 0, 16, 1, "REFZI", "Equivalent radar reflectivity
> factor for snow", "mm^6/m^3"},
> gribtab.dat:{ 0, 1, 0, 0, 16, 2, "REFZC", "Equivalent radar reflectivity
> factor for parameterized convection", "mm^6/m^3"},
> gribtab.dat:{ 0, 1, 0, 0, 16, 4, "REFD", "Reflectivity", "dB"},
> gribtab.dat:{ 0, 1, 0, 0, 16, 5, "REFC", "Composite reflectivity", "dB"},
>   (NCEP local def'n)
> gribtab.dat:{ 3, 1, 0, 0, 1, 9, "RFL06", "Reflectance in 0.6 Micron
> Channel", "%"},
> gribtab.dat:{ 3, 1, 0, 0, 1, 10, "RFL08", "Reflectance in 0.8 Micron
> Channel", "%"},
> gribtab.dat:{ 3, 1, 0, 0, 1, 11, "RFL16", "Reflectance in 1.6 Micron
> Channel", "%"},
> gribtab.dat:{ 3, 1, 0, 0, 1, 12, "RFL39", "Reflectance in 3.9 Micron
> Channel", "%"},
>
>  Wesley
>
> On Thu, Sep 27, 2012 at 7:26 PM, Thomas Robinson <ter at hawaii.edu> wrote:
>
>> Aloha GrADs Users,
>>
>> I am trying to create a netCDF file from my GrADS data as a Mercator
>> projection.  Apparently when I try to use:
>> 'set sdfwrite reflectivity.nc'
>> 'sdfwrite reflectivity'
>> where reflectivity is my variable and reflectivity.nc is my netCDF file,
>> it produces a netCDF file on a lat/lon projection.  So I either need to
>> convert the output to a Mercator projection grid or I need to somehow
>> create the netCDF from GrADS as a Mercator projection.
>>
>> ALTERNATIVELY:
>> I can create a grib2 file with reflectivity as the variable.  I used
>> g2grb.gs to do this, but there is no standard grib name for
>> reflectivity.  Just using a different variable name (such as HGT) is
>> unacceptable for this project.
>>
>> Any help you can provide will be most appreciated.
>>
>> --
>> Tom Robinson
>> President - Graduate Student Organization
>> Graduate Student - Department of Meteorology
>> 732-718-2323
>>
>>
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>>
>>
>
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>


-- 
Tom Robinson
President - Graduate Student Organization
Graduate Student - Department of Meteorology
732-718-2323
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