Re: [gembud] [EXTERNAL] Re: Surface & upper air corruption?

  • To: "Boothe, Mark (CIV)" <maboothe@xxxxxxx>, Evan Lowery <elowery@xxxxxxxxx>
  • Subject: Re: [gembud] [EXTERNAL] Re: Surface & upper air corruption?
  • From: "Mullenax, Robert R. (WFF-820.0)[ORBITAL SCIENCES CORPORATION]" <robert.r.mullenax@xxxxxxxx>
  • Date: Wed, 30 Oct 2019 19:31:16 +0000
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Although I find GARP much easier to configure and to use I finally had to just 
switch us over to NMAP2 exclusively. GARP just had too many random crashes like 
you are seeing as time went on and newer GEMPAK versions were released..

From: Boothe, Mark (CIV) <maboothe@xxxxxxx>
Sent: Wednesday, October 30, 2019 2:09 PM
To: Mullenax, Robert R. (WFF-820.0)[ORBITAL SCIENCES CORPORATION] 
<robert.r.mullenax@xxxxxxxx>; Evan Lowery <elowery@xxxxxxxxx>
Cc: gembud@xxxxxxxxxxxxxxxx; Yamaguchi, Ryan (CIV) <ryamaguc@xxxxxxx>; Nuss, 
Wendell (CIV) <nuss@xxxxxxx>
Subject: Re: [EXTERNAL] Re: [gembud] Surface & upper air corruption?

Robert and Evan,

Thanks for the excellent resources!  These backup Gempak files could come in 
quite handy.

Unfortunately, a quick and simple replacement of the Gempak file didn't solve 
my GARP-crashing problem this time. I don't believe we have NMAP2 installed, 
but I may need to investigate.

From: Mullenax, Robert R. (WFF-820.0)[ORBITAL SCIENCES CORPORATION] 
Sent: Wednesday, October 30, 2019 11:47 AM
To: Evan Lowery <elowery@xxxxxxxxx<mailto:elowery@xxxxxxxxx>>
Cc: Boothe, Mark (CIV) <maboothe@xxxxxxx<mailto:maboothe@xxxxxxx>>; 
<gembud@xxxxxxxxxxxxxxxx<mailto:gembud@xxxxxxxxxxxxxxxx>>; Yamaguchi, Ryan 
(CIV) <ryamaguc@xxxxxxx<mailto:ryamaguc@xxxxxxx>>; Nuss, Wendell (CIV) 
Subject: RE: [EXTERNAL] Re: [gembud] Surface & upper air corruption?

Definitely! I use Iowa State as well. A fantastic (and the only one I know of) 
repository for historical data in GEMPAK format.

From: Evan Lowery <elowery@xxxxxxxxx<mailto:elowery@xxxxxxxxx>>
Sent: Wednesday, October 30, 2019 1:27 PM
To: Mullenax, Robert R. (WFF-820.0)[ORBITAL SCIENCES CORPORATION] 
Cc: Boothe, Mark (CIV) <maboothe@xxxxxxx<mailto:maboothe@xxxxxxx>>; 
gembud@xxxxxxxxxxxxxxxx<mailto:gembud@xxxxxxxxxxxxxxxx>; Yamaguchi, Ryan (CIV) 
<ryamaguc@xxxxxxx<mailto:ryamaguc@xxxxxxx>>; Nuss, Wendell (CIV) 
Subject: [EXTERNAL] Re: [gembud] Surface & upper air corruption?

Another good resource which you can use to replace corrupted files<><>


Evan Lowery

On Wed, Oct 30, 2019 at 12:54 PM Mullenax, Robert R. (WFF-820.0)[ORBITAL 
<gembud@xxxxxxxxxxxxxxxx<mailto:gembud@xxxxxxxxxxxxxxxx>> wrote:

Hi Mark,

I have never found a way to fix the file once it becomes corrupted. Unidata has 
current data available as a nice backup to replace the corrupted file (usually 
up, but of course it isn't considered operational):<><>

Also, have you tried opening surface/upper air in NMAP2 instead of GARP?  One 
reason Unidata stopped support of GARP was instability. In my experience, 
especially GARP built on Linux. It could be GARP is the problem.

Best regards,

Robert Mullenax

From: gembud 
<gembud-bounces@xxxxxxxxxxxxxxxx<mailto:gembud-bounces@xxxxxxxxxxxxxxxx>> On 
Behalf Of Boothe, Mark (CIV)
Sent: Wednesday, October 30, 2019 10:41 AM
To: gembud@xxxxxxxxxxxxxxxx<mailto:gembud@xxxxxxxxxxxxxxxx>
Cc: Yamaguchi, Ryan (CIV) <ryamaguc@xxxxxxx<mailto:ryamaguc@xxxxxxx>>; Nuss, 
Wendell (CIV) <nuss@xxxxxxx<mailto:nuss@xxxxxxx>>
Subject: [EXTERNAL] [gembud] Surface & upper air corruption?

Hello Gembud list,

While our reception of satellite and model data are good here at NPS, GARP 
crashes upon request for surface or upper air observations. We've noticed this 
problem, intermittently for the last week or so.  If a particular day is 
unavailable, data for the following day, starting at 0000 UTC, can sometimes be 
fine, which seems to suggest that once a particular day's gempak file is 
"corrupted", it is completely corrupted for the entire day.

Does anyone know of a common cause of this problem?  If it is a problem caused 
by just a single bad datum point, is it possible to "surgically" remove the 
offending point from the .gem file? Is there a way to search the 'dcmetr.log' 
file to find the culprit? What would I usually search for? (Or am I barking up 
the wrong tree?)

Thanks in advance for any guidance,

Mark Boothe

Naval Postgraduate School

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