[ncl-talk] Issue reading grib in 6.3.0?

[Dennis Shea]

Hi Carl,

In the following, the file name is:  nam.t06z.awip1203

You must add the '.grb' extension

%> ncl_filedump nam.t06z.awip1203.grb

NCL will look for a file named "nam.t06z.awip1203.grb" on the disk.
If it does not find it, NCL will look for "nam.t06z.awip1203" and
'remember' to treat it as a grib file.

One file

  f = addfile("nam.t06z.awip1203.grb","r")


For multiple files


   diri = "./"
   fili = systemfunc("cd "+diri+" ; ls nam.t06z.awip*")
   f   = addfiles(diri+fili+".grb")
    ListSetType (f, "join")

HTH
D

 Copyright (C) 1995-2015 - All Rights Reserved
 University Corporation for Atmospheric Research
 NCAR Command Language Version 6.3.0
 The use of this software is governed by a License Agreement.
 See http://www.ncl.ucar.edu/ for more details.

Variable: f
Type: file
filename:       nam.t06z.awip1203
path:   nam.t06z.awip1203
   file global attributes:
   dimensions:
      ygrid_0 = 428
      xgrid_0 = 614
      lv_ISBL0 = 4
      lv_SIGL1 = 5
      lv_SPDL2 = 6
      lv_HTGL3 = 2
      lv_SPDL4 = 5
      lv_ISBL5 = 2
      lv_ISBL6 = 5
      lv_SPDL7 = 3
      lv_HTGL8 = 2
      lv_HTGL9 = 2
      lv_DBLL10 = 4
   variables:
      float TMP_P0_L1_GLC0 ( ygrid_0, xgrid_0 )
         center :       US National Weather Service - NCEP (WMC)
         production_status :    Operational products
         long_name :    Temperature
         units :        K
         _FillValue :   1e+20
         coordinates :  gridlat_0 gridlon_0
         grid_type :    Lambert Conformal can be secant or tangent, conical
or bipolar
         parameter_discipline_and_category :    Meteorological products,
Temperature
         parameter_template_discipline_category_number :        ( 0, 0, 0,
0 )
         level_type :   Ground or water surface
         level :         0
         forecast_time :        3
         forecast_time_units :  hours
         initial_time : 04/09/2015 (06:00)

[SNIPu




On Thu, Apr 9, 2015 at 7:54 AM, Carl Schreck <cjschrec at ncsu.edu> wrote:

> I'm having a strange issue where NAM forecast grib files from ldm are not
> able to be read in 6.3.0. A sample file is:
> ftp://filsrv.cicsnc.org/carl/temp/nam.t06z.awip1203
>
> The error I get is:
> --
> fatal:["FileSupport.c":4159]:(/home/carl/ftp/temp/nam.t06z.awip1203.grib)
> has no file extension, can't determine type of file to open
>
> Variable: f
> Type: file
> (0) File Missing Value : -1
> --
> Renaming the file to have a .grib extension makes no difference. It does
> work if I roll back to 6.2.1, however.
>
> The binaries I downloaded are:
> ncl_ncarg-6.2.1.Linux_SL6.5_x86_64_gcc447.tar.gz
> ncl_ncarg-6.3.0.Linux_RHEL6.4_x86_64_gcc447.tar.gz
>
> Thanks!
>
>     Carl
> --
>
> <http://www.cicsnc.org/>
> <http://www.researcherid.com/rid/B-8711-2011>
> * Cyclone <http://www.cyclonecenter.org/>*Center.org
> <http://www.cyclonecenter.org/>  *Carl J. Schreck III, PhD*
> *Research Associate*
> North Carolina Institute for Climate Studies (NCICS) /
> Cooperative Institute for Climate and Satellites NC (CICS-NC)
> <http://www.cicsnc.org/>
> North Carolina State University <http://ncsu.edu/>
> NOAA National Centers for Environmental Information (NCEI)
> <http://ncdc.noaa.gov/>
> 151 Patton Ave, Asheville, NC 28801
> e: cjschrec at ncsu.edu
> o: +1 828 257 3140
> Publications
> <http://scholar.google.com/citations?hl=en&user=th8ONEcAAAAJ&view_op=list_works&sortby=pubdate>
> monitor.cicsnc.org/mjo
>
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