Re: variables gfs

From: Christelle LACROIX <cl_at_nyahnyahspammersnyahnyah>
Date: Fri Feb 10 2012 - 04:14:17 MST

ok, thanks;

I have a map with GFS data, but there is a line without data and i don't
understand why.
It may this line correspond to greenwich meridien, but there are datas
everywhere, if you have an idea, please.

I tried to use FillValue but it changes nothing.

Thanks

CL

2012/2/3 Dennis Shea <shea@ucar.edu>

> Hello
>
> [1]
> The "T_CDC_GDS3_EATM and ACPCP_GDS3_SFC" variable names are from
> GRIB-1 files. The files you are reading are in GRIB-2 format.
>
> [2]
> Please see output from
>
> %> ncl_filedump gblav.T00Z.PGrbF03.grb | less
>
> [3]
> ===> Note that there are **multiple** "Total Cloud Cover" variables.
>
> I have edited the output:
>
> [+++++]
> float TCDC_P0_L244_GLL0 ( lat_0, lon_0 )
> center : US National Weather Service - NCEP (WMC)
> production_status : Operational products
> =====> long_name : Total cloud cover
> =====> units : %
> =====> level_type : Convective cloud
> level : 0
>
>
> [+++++]
> float TCDC_P8_L200_GLL0_avg ( lat_0, lon_0 )
> long_name : Total cloud cover
> units : %
> _FillValue : 1e+20
> level_type : Entire atmosphere (considered as a single layer)
> level : 0
> type_of_statistical_processing : Average
> statistical_process_duration : initial time to forecast time
> [++++]
> float TCDC_P8_L211_GLL0_avg ( lat_0, lon_0 )
> long_name : Total cloud cover
> units : %
> ==> level_type : Boundary layer cloud layer
> level : 0
> type_of_statistical_processing : Average
> statistical_process_duration : initial time to forecast time
> [+++++]
> float TCDC_P8_L214_GLL0_avg ( lat_0, lon_0 )
> long_name : Total cloud cover
> units : %
> ===> level_type : Low cloud layer
> level : 0
> type_of_statistical_processing : Average
> statistical_process_duration : initial time to forecast time
> [+++++]
> There are middle and high Clouds also!!!
>
> ===================================>precip
> float APCP_P8_L1_GLL0_acc ( lat_0, lon_0 )
> long_name : Total precipitation
> units : kg m-2
> level_type : Ground or water surface
> level : 0
> type_of_statistical_processing : Accumulation
> statistical_process_duration : initial time to forecast time
> [+++++]
> float ACPCP_P8_L1_GLL0_acc ( lat_0, lon_0 )
> long_name : Convective precipitation
> units : kg m-2
> level_type : Ground or water surface
> level : 0
> type_of_statistical_processing : Accumulation
> statistical_process_duration : initial time to forecast time
> ----
>
> Hope this helps
>
> D
>
> On 2/3/12 9:40 AM, Christelle LACROIX wrote:
> > Hi,
> >
> >
> > I sent 3 files on FTP,
> > my NCL version is 6.0.0 and
> > my sysem is: Linux autru 2.6.32-5-amd64 #1 SMP Mon Jan 16 16:22:28 UTC
> > 2012 x86_64 GNU/Linux
> >
> > i want to plot t = a->T_CDC_GDS3_EATM(:,:).
> >
> > Thanks,
> >
> > CL
> >
> > 2012/2/3 Dennis Shea <shea@ucar.edu <mailto:shea@ucar.edu>>
> >
> > It is not possible to know based upon the information below.
> >
> >
> > You can ftp sample file
> >
> > ftp ftp.cgd.ucar.edu <http://ftp.cgd.ucar.edu>
> > anonymous
> > Use your email address for the password
> > cd incoming
> > put ...
> >
> > quit
> >
> > Send email to ncl-talk with the following information:
> >
> > The names of the file after you have successfully completed the
> > transfer.
> > We cannot look at the ftp/incoming directory for security
> reasons.
> >
> > Also, .....
> >
> > The version of NCL you are running (ncl -V).
> > The type of system you are on (uname -a).
> >
> > Cheers
> >
> > On 2/3/12 9:22 AM, Christelle LACROIX wrote:
> > > Hi,
> > >
> > >
> > > I would like to plot convective and non convective precipitation
> and
> > > total cloud cover from GFS, but i don't know which variables
> used, i
> > > tried T_CDC_GDS3_EATM and ACPCP_GDS3_SFC but without success.
> > > So i would like to know these variable's names.
> > >
> > > Thanks;
> > >
> > > CL
> > >
> > >
> > > _______________________________________________
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Received on Fri Feb 10 04:14:34 2012

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