Re: TRMM 3B42 V7 HDF files

Dave Adams,

It seems that the main program is not even starting to run properly. The
words "substring.ncl" and "begin" are in the output that you showed. These
words should not be printed, they are part of the program.

Also, the very first message that you should see after the NCL header is
"Convert TRMM three hourly HDF files into single Netcdf file". This
message was NOT in the output that you showed. Therefore, the program is
not starting properly.

I do not understand what is going on. Let me ask a few really basic
questions in case you are just getting started.

Did you get the second attachment "substring.ncl" and put it into the same
directory as the main program?

Did you save both NCL attachments using your mail reader's save function?
 Did the files get corrupted while saving?

Are you starting this program on an operating system (Linux, etc.) command
line with "ncl" followed by the name of the main program, as shown on line
100 in the program?

Try checking syntax of the "load" commands with the NCL documentation.
 There must be double quotes around the file name.

Try making a test copy of the main program. Delete all lines from "Data
set parameters" (line 112) to the end of the program, except for "end" at
the very bottom. The test program should now consist only of load and
print statements, and comments, except for original line 29 which can also
be deleted.

You can also delete all the comments for the sake of debugging. Also
delete the load commands themselves if nothing else works.

See if you can get this simple test of a few print statements to work.
 Good luck.

--Dave Allured


On Mon, Jun 9, 2014 at 6:51 PM, David Adams <dave.k.adams@gmail.com> wrote:

> Hi Dave et al.
>
> I have set it to
> ./substring.ncl
> in hdf-to-nc.trmm.3b42.8x.v7a.ncl\
>
> but still get the same error.
>
> See http://www.ncl.ucar.edu/ for more details.
> ./substring.ncl
> begin
> print(fatal:Could not open ()
> fatal:error at line 107 in file hdf-to-nc.trmm.3b42.8x.v7a.ncl
>
> saludos,
> Dave
>
>
> On Mon, Jun 9, 2014 at 7:45 PM, Dave Allured - NOAA Affiliate <
> dave.allured@noaa.gov> wrote:
>
>> Dave Adams,
>>
>> Please, no private replies. Include the mailing list in all replies.
>>
>> In the main program, remove the prefix $LIB_NCL/ from the front of the
>> load command near the top of the program. Or else, in the shell before
>> running the program, set an environment variable LIB_NCL to "." (single
>> period).
>>
>> --Dave Allured
>>
>>
>> On Mon, Jun 9, 2014 at 6:08 PM, David Adams <dave.k.adams@gmail.com>
>> wrote:
>>
>>> Hi Dave,
>>> I am trying your code with just 2013 data. The files are complete for
>>> 2013 uncompressed HDF files. I am getting an error
>>>
>>> University Corporation for Atmospheric Research
>>> NCAR Command Language Version 6.0.0
>>> The use of this software is governed by a License Agreement.
>>> See http://www.ncl.ucar.edu/ for more details.
>>> substring.ncl
>>> begin
>>> print(fatal:Could not open ()
>>> fatal:error at line 107 in file hdf-to-nc.trmm.3b42.8x.v7a.ncl
>>>
>>> Is there something I am supposed to set for the substring.ncl program?
>>>
>>> saludos,
>>> Dave
>>>
>>>
>>> On Mon, Jun 9, 2014 at 3:08 PM, Dave Allured - NOAA Affiliate <
>>> dave.allured@noaa.gov> wrote:
>>>
>>>> Dave Adams,
>>>>
>>>> Attached is an NCL script to translate original TRMM 3B42 V7 HDF files
>>>> and aggregate them into a single large Netcdf file. This approach seemed
>>>> to be more efficient than working with Netcdf files translated by the
>>>> Mirador server. You might find this useful.
>>>>
>>>> --Dave Allured
>>>>
>>>>
>>>> On Mon, Jun 9, 2014 at 9:11 AM, David Adams <dave.k.adams@gmail.com>
>>>> wrote:
>>>>
>>>>> Hi NCLers
>>>>>
>>>>> Is there an easy way to convert HDF files to netcdf files for the TRMM
>>>>> 3B42 V7 data? I had done it before with v6.
>>>>>
>>>>> ncl_convert2nc 3B42.20121230.12.7.HDF
>>>>> doesn't seem to work.
>>>>> I get the following error
>>>>>
>>>>> warning:HDF: fakeDim2 is a zero length dimension some variables may be
>>>>> ignored
>>>>> warning:HDF: fakeDim3 is a zero length dimension some variables may be
>>>>> ignored
>>>>> warning:HDF: fakeDim4 is a zero length dimension some variables may be
>>>>> ignored
>>>>> warning:HDF: A zero length dimension was found in variable
>>>>> (InputFileNames), ignoring this variable
>>>>> warning:HDF: A zero length dimension was found in variable
>>>>> (InputAlgorithmVersions), ignoring this variable
>>>>> warning:HDF: A zero length dimension was found in variable
>>>>> (InputGenerationDateTimes), ignoring this variable
>>>>> ncdimdef: ncid 65536: NetCDF: NC_UNLIMITED size already in use
>>>>> ncdimdef: ncid 65536: NetCDF: NC_UNLIMITED size already in use
>>>>> fatal:Execute: Error occurred at or near line 360 in file
>>>>> /tmp/tmp5008.ncl
>>>>>
>>>>> Or are there 3B42 V7 in netcdf format for the entire data set that I
>>>>> can download with wget?
>>>>>
>>>>> thanks,
>>>>> Dave
>>>>>
>>>>

Received on Tue Jun 10 01:57:23 2014