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20010328: missing data

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  • Subject: 20010328: missing data
  • Date: Thu, 29 Mar 2001 12:43:56 -0700
>From: address@hidden
>Organization: UCAR/Unidata
>Keywords: 200103290039.f2T0dQL07611

>Hi Steve,
>       I uploaded the 1965.gem file.  It should be there now...
>
>Diana
>


Diana,

I looked at your data file. There are 10 unique station id's in the file:
 STID = ADQ           STNM =    70350   
 STID = BRO           STNM =    72250   
 STID = CHS           STNM =    72208   
 STID = DRT           STNM =    72261   
 STID = ELP           STNM =    72270   
 STID = HKS           STNM =    72235   
 STID = LCH           STNM =    72240   
 STID = MAF           STNM =    72265   
 STID = NQX           STNM =    72201   
 STID = TPA           STNM =    72211


Denver isn't in the list, so that is why snlist gives you the message
about station not available. So, I believe snlist is behaving properly.

The next question is why don't you have DEN in the gempak file?

the fsltogem program is configured to allow up to 200 unique station
ids, so that shouldn't be the problem.

Previously, you mentioned that you created a roughly 2GB extraction
from the data set using the getraob program. So, I guess we should check
whether you have Denver is that list.

In the tarfile I created for you, there is a data/1948101603.rao file.
This should be in the same format as the file you extracted with
the stations you selected.

To list the station IDS sound in that text file, I ran:
% cat 1948101603.rao | tr -s " " | grep '^ 1' | sort -u

The output is:
 1 23012 72469 39.72 104.87 1661 99999
 1 23012 72469 39.72 104.88 1640 99999
 1 23012 72469 39.72 104.88 1643 99999
 1 23062 72469 39.77 104.88 1608 99999
 1 23062 72469 39.77 104.88 1611 99999
 1 94005 72469 40.12 103.17 1408 99999

this shows the 6 different incarations of 72469 that were in the time range
I pulled off the CD.

If you run the above command for your data file, you should get a list
of the IDs in the file you created. It might take several minutes
to run through the 2GB before you see any output. If 72469 is there, 
then we need to look at why it wasn't put in to the GEMPAK files by the 
fsltogem program.

If you only find the 10 IDs that I showed above, then you will have to run
the getraob proram again to extract the other stations.

Let me know what you find.

Steve Chiswell