Re: Nio.open_file hangs NOT necessarily too few grid points in GRIB1

Hi Wenchieh,

On Feb 16, 2007, at 2:33 PM, Wenchieh YEN wrote:

>
>> Also I notice that these files have parameters from DWD table 204
>> which is not yet incorporated into NCL.
>> A quick google search gives me the values below for table 204. Is
>> this correct? I can see that it is not complete.
>> Can you point me to an authoritative version of the table so that I
>> can add it into NCL's set of parameter tables.
>> Thanks.
>> -dave
>
> DWD now has status quo GRIB tables up to 207. Some GRIB parameter have
> a new name with the same GRIB table and parameter id. Some even have
> auxiliary parameter id defined in the PDS section, so as to subclass
> certain parameters. One example is cloudy/clear-sky brightness
> temperature/radiances from synthetic satellite channels.
>

As Emerson said -- "A foolish consistency is the hobgoblin of little
minds" -- or something like that...
Maybe things will improve with GRIB 2 eventually.

> I believe there are no "authoritative" DWD tables out there in
> internet. I have the operational DWD GRIB tables here, however, many
> parameter names seem differ from what are actually used in the DWD
> models / NCL tables / wgrib tables. I am rebuilding the tables to be
> NCL compliant (see the link below) and cross-checking them. Besides I
> am also contacting possbile internal DWD people who can help on this,
> and most importantly get their endorsement...

This would be great.

>
> If you gonna incorporate these tables into NCL, thus Nio, what format
> do you prefer? like NCL tables?

Yes, the NCL text representation would be fine.
  -dave

>
> -Wenchieh-
>
> http://www.ncl.ucar.edu/Document/Manuals/Ref_Manual/
> NclFormatSupport.shtml#GRIB
>
Received on Fri Feb 16 2007 - 15:14:59 MST