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NCAR / pynio

PyNIO is a multi-format data I/O package with a NetCDF-style interface
http://www.pyngl.ucar.edu/Nio.shtml
Apache License 2.0
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Not a valid GRIB2 code table #7

Open MassD opened 8 years ago

MassD commented 8 years ago

Hello

When I use PyNIO to process some gfs files, it gave such an warning:

2016-08-29 11:02:21,618 - INFO    PID: 31442 - Processing file gfs_3_20131226_1200_036.grb2
warning: Entry (224) not found in code table file /users/is/jackson/pyenvs/hello/lib/python2.7/site-packages/PyNIO/ncarg/grib2_codetables/ncep/4/4.2.0.2.table
warning: NclGRIB2: codetable file "/users/is/jackson/pyenvs/hello/lib/python2.7/site-packages/PyNIO/ncarg/grib2_codetables/ncep/4/4.2.2.4.table" not a valid GRIB2 code table

It seems the process cannot find a valid GRIB2 code table.

Can I know how to solve this problem?

david-ian-brown commented 8 years ago

Hi Jackson, These messages are warnings about specific parameters in your GRIB files. They do not mean that PyNIO has not been able to read the files.

Which version of PyNIO are you using? Entry 224 from code table 4.2.0.2.table is present in both the currently distributed versions of PyNIO: 1.4.3 and 1.5.0-beta. When PyNIO cannot find an entry it still gives you the data. Among the variables you should find a variable whose name begins with VAR_0_2_224. When the table entry is not found, it simply means PyNIO does not know the name and units of the variable. This variable is actually "Ventilation rate" with units of "m2 s-1".

The other warning about the missing table 4.2.2.4 also suggests that you are using an older version of PyNIO, although I could be wrong about that. At any rate the variables should still appear and have names that start with VAR_2_4.

We are always playing catch up trying to keep our GRIB tables up-to-date because they are always changing. It's not something that we can pay attention to every day. But the good news is that usually only a few variables are affected and it is not a fatal issue.

If you haven't upgraded lately you probably should. If you still see warnings like these, let us know and we will try to update the tables and put out a newer version. -dave

On Mon, Aug 29, 2016 at 4:06 AM, Jackson Tale notifications@github.com wrote:

Hello

When I use PyNIO to process some gfs files, it gave such an warning:

2016-08-29 11:02:21,618 - INFO PID: 31442 - Processing file gfs_3_20131226_1200_036.grb2 warning: Entry (224) not found in code table file /users/is/jackson/pyenvs/hello/lib/python2.7/site-packages/PyNIO/ncarg/grib2_codetables/ncep/4/4.2.0.2.table warning: NclGRIB2: codetable file "/users/is/jackson/pyenvs/hello/lib/python2.7/site-packages/PyNIO/ncarg/grib2_codetables/ncep/4/4.2.2.4.table" not a valid GRIB2 code table

It seems the process cannot find a valid GRIB2 code table.

Can I know how to solve this problem?

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