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19990513: ACARS decoder query
- Subject: 19990513: ACARS decoder query
- Date: Thu, 13 May 1999 10:14:31 -0600
Certainly sounds like you have something wrong.
Double check that the acars.pack is in your $GEMTBL/pack directory
and hasn't been changed/munged. It was in the tarfile under the
gempak5.4/tables/pack directory.
I provided a sample acars file in the distribution. You should be able to
run:
cat 9902091400_acars.nc | dcacars -vx -l - YYMMDDHH_acars.gem
This will spew very verbosely, and you should see the initial
reading in data from the netcdf file like:
Record xxx tail_number FSLxxxx time 19990209/1454
Lat 32.366665 Lon -93.900002 Height 10664.342773 Pres 239.888229
After all the netcdf file is read, you will see the write_gempak.c
messages like:
Station data for FSL00202 : 990209/1408 99020914_acars.gem
Lat: 17.92 Lon: -81.13 Elev: 11887.20
temp -50.30 dwpc -9999.00 relh -9999.00 vacc 0.000
Assuming you are seeing non-zero values for tmpc, then you should have
them in the output file.
Steve Chiswell
Unidata User SUpport
On Thu, 13 May 1999, Gregory Grosshans wrote:
> Steve,
>
> I've been decoding the ACARS data manually with the dcacars program and
> the only values that I observe in SFLIST with sfparm=dset are PRES values.
> All other parameters are zeros. I've looked at an entire hours worth of data
> and the only data that I see is PRES data.
>
> Am I not doing something correctly?
>
> Thanks,
> Gregg
>