[jira] [Commented] (KYLIN-1040) update specification of the attribute for variable units in reading netCDF files

["Kim, Jinwon (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KYLIN-1040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14903647#comment-14903647 ] 

Kim, Jinwon commented on KYLIN-1040:
------------------------------------

Typos in the original text:
"ice/data_source/local.py" --> "cow/data_source/local.py", and
"cow/utils.py" --> "ocw/utils.py"

> update specification of the attribute for variable units in reading netCDF files
> --------------------------------------------------------------------------------
>
>                 Key: KYLIN-1040
>                 URL: https://issues.apache.org/jira/browse/KYLIN-1040
>             Project: Kylin
>          Issue Type: Improvement
>            Reporter: Kim, Jinwon
>
> Attention: Mike Joyce, Kyo Lee
> Encountered a problem while reading netCDF files for processing. The problem is due to the mismatch in the units attribute in the netCDF file and in the RCMES code. In the two routines, "ice/data_source/local.py" and "cow/utils.py", the attribute to specify variable units is hardwired as "units", e.g., "time_format = time_data.units". This crashes the run if the units attribute in the netCDF file is different from "units", e.g., "varUnit" in WRF. I have temporarily fixed this problem by replacing the line:
> --------------------------------------------------
>     time_format = time_data.units
> --------------------------------------------------
> with a try block:
> --------------------------------------------------
>     try:
>         time_format = time_data.units
>     except:
>         time_format = time_data.varUnit
> --------------------------------------------------
> With this fix, I can proceed to the next step. This fix is only temporary. In creating netCDF files, users can specify any name for the attribute of units (also long_name). A more permanent solution may be to have users to specify the attribute of units in the config file at the place they specify input data from local disk (applies to both the reference and model data).



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