[gradsusr] Grads cannot open MERRA HDF file

[You, Yalei]

Dear Jennifer,

Thank you so much for the help.
1. I am trying to get HDF4.2r3, but look likes I cannot ftp the file, Here is what I did:
***********
ftp iges.org
***********
Connected to iges.org.
500 OOPS: cannot change directory:/web/colaftp
ftp>

Also, when I click" local copy of source code<ftp://grads.iges.org/grads/Supplibs/2.1/src/HDF4.2r3.tar.gz>", it asks the name and passcode, I put "anynomous", it won't work.

2. The Grads on my pc come with Ubuntu, so I guess it is not easy to change the default software. Do you know any version of Grads which can read hdf4, that way I can install it on my pc.

Thanks again.

Yalei

________________________________
From: gradsusr-bounces at gradsusr.org [gradsusr-bounces at gradsusr.org] on behalf of Jennifer Adams [jma at cola.iges.org]
Sent: Thursday, July 05, 2012 1:48 PM
To: GrADS Users Forum
Subject: Re: [gradsusr] Grads cannot open MERRA HDF file

Your build is not enabled to handle hdf4 files, only hdf5. Please have a look at http://iges.org/grads/gadoc/supplibs.html for help on building HDF4.2r3.
--Jennifer

On Jul 5, 2012, at 12:51 PM, You, Yalei wrote:

Thank you very much.

Here is the information after I use "q config", also I posted the information after I typed grads under Ubuntu
***********************************************
Grid Analysis and Display System (GrADS) Version 2.0.a9
Copyright (c) 1988-2010 by Brian Doty and the
Institute for Global Environment and Society (IGES)
GrADS comes with ABSOLUTELY NO WARRANTY
See file COPYRIGHT for more information

Config: v2.0.a9 little-endian readline printim grib2 netcdf hdf5 shapefile
Issue 'q config' command for more detailed configuration information
Landscape mode? ('n' for portrait):
GX Package Initialization: Size = 11 8.5

ga-> q config
Config: v2.0.a9 little-endian readline printim grib2 netcdf hdf5 shapefile
Grid Analysis and Display System (GrADS) Version 2.0.a9
Copyright (c) 1988-2010 by Brian Doty and the
Institute for Global Environment and Society (IGES)
This program is distributed WITHOUT ANY WARRANTY
See file COPYRIGHT for more information.

Built Tue May 31 08:58:09 UTC 2011 for i686-pc-linux-gnu

This version of GrADS has been configured with the following options:
  o Built on a LITTLE ENDIAN machine
  o Athena Widget GUI DISABLED
  o Command line editing ENABLED
      http://tiswww.case.edu/php/chet/readline/rltop.html
  o printim command for image output ENABLED
      http://www.zlib.net<http://www.zlib.net/>
      http://www.libpng.org/pub/png/libpng.html
      http://www.libgd.org/Main_Page
  o GRIB2 interface ENABLED
      http://www.ijg.org<http://www.ijg.org/>
      http://www.ece.uvic.ca/~mdadams/jasper
      http://www.nco.ncep.noaa.gov/pmb/codes/GRIB2
      g2clib-1.2.2
  o NetCDF interface ENABLED
      http://www.unidata.ucar.edu/software/netcdf
      netcdf 4.1.1 of Sep 11 2011 12:47:31 $
  o OPeNDAP gridded data interface DISABLED
  o OPeNDAP station data interface DISABLED
  o HDF5 interface ENABLED
      http://hdfgroup.org<http://hdfgroup.org/>
      HDF5 1.8.4
  o GeoTIFF and KML/TIFF output DISABLED
  o KML contour output ENABLED
  o Shapefile interface ENABLED
      http://shapelib.maptools.org<http://shapelib.maptools.org/>

For additional information please consult http://iges.org/grads


________________________________
From: gradsusr-bounces at gradsusr.org<mailto:gradsusr-bounces at gradsusr.org> [gradsusr-bounces at gradsusr.org<mailto:gradsusr-bounces at gradsusr.org>] on behalf of Jennifer Adams [jma at cola.iges.org<mailto:jma at cola.iges.org>]
Sent: Thursday, July 05, 2012 12:40 PM
To: GrADS Users Forum
Subject: Re: [gradsusr] Grads cannot open MERRA HDF file

I downloaded the file and was able to open it with sdfopen without any problems. Based on these clues:

Open Error:  Data file type invalid
 --> The invalid description file record is:
 --> DTYPE hdfsds

Attempt to use feature that was not turned on when netCDF was built.

I believe the problem lies in your particular GrADS build, especially the hdf library. Can you send the output from 'q config'?
--Jennifer




--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org<mailto:jma at cola.iges.org>



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--
Jennifer M. Adams
IGES/COLA
4041 Powder Mill Road, Suite 302
Calverton, MD 20705
jma at cola.iges.org<mailto:jma at cola.iges.org>



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