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20000710: DCHRLY Decoder

James,

Hope you have managed to get underway after this problem.

The "dc" section of the user guide tries to give an explanation
of the theory of what the dc decoders are doing- including the common command
line parameters.

The online help is basically just the basic invocation statement and
certainly lacking much of the details.

I've tried to give a general background of the decoders in the online tutorial- 
but the caps problem is a peculiarity that will escpae any of that 
documentation.

These are many of the issues toward upgrading documentation in the 5.5 release.

Steve Chiswell



>From: James T Brown <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200007101441.e6AEfUT12425

>Steve:
>
>Thanks for the clarifications.  I do use the relative
>paths for our daily operational data, but I was trying
>to setup some decoders to write to a research directory
>for one of our students - that is what led me to the
>troubles with the caps in the filename or path.  Will
>add some links to enable the decoders to run properly.
>
>Guess I never thought to take a look at the User Guide
>I was maybe getting too dependent with on-line man pages 
>and help files.  Printed Chapter 5 and that information
>actually refers to GUI Programs.  I did find the info
>in Chapter 6 and it looks very useful.
>
>Thanks again for your help.  Much appreciated!
>
>Jim
>
>
>
>> GEMPAK deals in 1 case since the early VMS systems only allowed that.
>> When invboking the decoder from the ldm, you should be able to
>> use the relative path to data/gempak/surface if you have that
>> path under LDM, so you can avoid your WarmTop path.
>> 
>> Typically, you would find that if you named the file
>> YYYYMMDD_SAO.GEM, you should get the output file
>> as YYYYMMDD_sao.gem. However, when the paths to the
>> tables are not convertible, you would have trouble.
>> 
>> The basics of DC decoders are described in Chapter 5 of the user guide...
>> dchrly will become dcmetr in GEMPAK 5.5
>> 
>> Steve Chiswell
>> Unidata User Support
>
>
>-- 
>==========================================================
>James T. Brown   
>UNIX Systems Administrator
>Geography/Fisheries & Wildlife
>Michigan State University
>
>email: address@hidden
>