[gradsusr] Can't open .nc file in Grads in Linux machine!

[M.Mahakur]

probably udunits not in proper path or missing..

----- Original Message -----
From: Mohsen Soltani <soltani.clima at gmail.com>
To: GrADS Users Forum <gradsusr at gradsusr.org>
Sent: Sat, 01 Jun 2013 21:03:22 +0530 (IST)
Subject: [gradsusr] Can't open .nc file in Grads in Linux machine!

Hi,

I installed Grads in Linux - Ununtu version, using the following command:
"sudo apt-get install grads" . And then, to find out where the Grads has
been installed in Linux, in terminal I typed: "whereis grads", then the
Grads directory appeared something like this: "usr/share... etc.". I copied
the grads into my home directory. And then, typed "grads" in terminal and
grads opened. Next, I did "!ls" and the following data were shown:
*************************************************
ga-> !ls
grads  hgt.nc  slp.nc air.nc  and other things...
ga->
*********************************
And I wanted to open a NetCDF file, say: hgt.nc. Therefore, I typed "sdfopen
hgt.nc ", but the following error appeared: (that's interesting to know
that, when I typed sdfopen hg...., I hit the Tab, and the rest of the text
appeared automatically):
*********************************
ga-> sdfopen hgt.nc
Scanning self-describing file:  hgt.nc
Definition of "kt" in "/usr/share/xml/udunits/udunits2-common.xml", line
90, overrides prefixed-unit "1000000 kilogram"
Definition of "microns" in "/usr/share/xml/udunits/udunits2-common.xml",
line 308, overrides prefixed-unit "1e-15 second"
Definition of "ft" in "/usr/share/xml/udunits/udunits2-common.xml", line
405, overrides prefixed-unit "1e-12 kilogram"
Definition of "yd" in "/usr/share/xml/udunits/udunits2-common.xml", line
413, overrides prefixed-unit "8.64e-20 second"
Definition of "pt" in "/usr/share/xml/udunits/udunits2-common.xml", line
634, overrides prefixed-unit "1e-09 kilogram"
Definition of "at" in "/usr/share/xml/udunits/udunits2-common.xml", line
1031, overrides prefixed-unit "1e-15 kilogram"
Definition of "ph" in "/usr/share/xml/udunits/udunits2-common.xml", line
1549, overrides prefixed-unit "3.6e-09 second"
Definition of "nt" in "/usr/share/xml/udunits/udunits2-common.xml", line
1556, overrides prefixed-unit "1e-06 kilogram"
ut_get_converter(): Units not convertible
ut_get_converter(): Units not convertible
ut_get_converter(): Units not convertible
gadsdf: Error parsing time units in SDF file.
ga->
*************************
I tried to open another data:
*********
ga-> sdfopen slp.nc
Scanning self-describing file:  slp.nc
ut_get_converter(): Units not convertible
ut_get_converter(): Units not convertible
ut_get_converter(): Units not convertible
ut_get_converter(): Units not convertible
ut_get_converter(): Units not convertible
ut_get_converter(): Units not convertible
ut_get_converter(): Units not convertible
Success
ut_get_converter(): Couldn't get converter from seconds
ut_get_converter(): Units in different unit-systems
Success
ut_get_converter(): Couldn't get converter from seconds
ut_get_converter(): Units not convertible
Success
ut_get_converter(): Couldn't get converter from seconds
gadsdf: Error parsing time units in SDF file.
ga->
********************************
Again, another data:
***********************
ga-> sdfopen air.nc
Scanning self-describing file:  airtemperature.nc
ut_get_converter(): Units not convertible
ut_get_converter(): Units not convertible
ut_get_converter(): Units not convertible
gadsdf: Error parsing time units in SDF file.
ga->
***************
As you see, none of them opened! Wondering why? Does anyone know what's
going wrong? And what should I do to open a NetCDF (.nc) file in Grads in
Linux machine?


Mohsen
--
some are weather-wise some are otherwise!
--
Best Wishes,
(Mr.) Mohsen Soltani
Climatology Grad Student (M.Sc.),
Faculty of Geography, University of Tehran, Tehran, Iran
Tel: (+98) 9119772934
e-mail: soltani.clima at gmail.com