gpt.sh reprojection issue

[junzhao]

Hi,

I am using seadas V7.4. I tried to reproject a l2 file generated by l2gen. When the output file format was set to hdf5, the processing failed. The error message is attached below:
A problem occurred during processing the target product processing.
Type: OperatorException
Message: Not able to write product file: ....h5

But if the output file format was set to netcdf4-cf, everything is okay. My code was written to deal with hdf5 files.

I ran the reprojection from both the GUI and the command line (gpt.sh). The same error happened.

Any suggestion would be greatly appreciated.

Jun

[OB SeaDAS - knowles]

Please specify file name and the reprojection parameters you are using.  Give us enough to know what mission you are using and replicate what you are doing.

I'm gonna take a guess that you might be using a mission which has large files.  Possibly your memory is set too low for one of these operations.

See file(s):
$SEADAS_HOME/bin/seadas.vmoptions
$SEADAS_HOME/bin/gpt.sh

And change line:
-Xmx1024M

.. to a higher memory value like: -Xmx2048M or -Xmx3060M ...

Danny

[gnwiii]

NetCDF4 uses the HDF5 library, so your NetCDF4-CF should "just work" with software written to handle HDF5.   Some tools, however, may insist on particular file name conventions (e.g., ".h5"), or may not follow CF conventions for metadata.

[junzhao]

Hi Danny,

Thanks for your reply. The .xml file used for the reprojection is attached. I only ran it for one scene collected by MODIS/Aqua. The l2 file name is A2009190055500.L2_LAC. The area of interest was defined by 19-23.5 N and 111.5-117.5 E. BTW, the l2 file was generated with l2gen in a hdf4 format. Its size is 31M.

The following command was ran:
gpt.sh reproject.xml -SsourceFileName=A2009190055500.L2_LAC -t test -f hdf5

I increased the memory to 3096M. But the same error happened.

Jun
attachment 1

[junzhao]

George, Thank you for your clarification.

Jun