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20010220: nmap, nmap2 and comet case study



Clint,

Are you using the "Set Time" button in the data selection widget in NMAP2?

If you are, and aren't getting the times displayed in the selection widget,
this might be what John Horel is describing below. If so, I can compile
NMAP2 for you using John's suggestion below for you to try.
I haven't tested it our here yet.

Chiz


Steve Chiswell
Unidata User Support


--------------------------------------------------------------------------
From: "John D. Horel" <address@hidden>
Message-Id: <address@hidden>
To: address@hidden
Subject: minor fix to nmap2 time library routine
X-Sun-Charset: US-ASCII

This bug is so esoteric that I won't bother sending it out to the gembud list. 
I was unable to plot surface data in nmap2 from last February using the pop up 
"set time" widget. After putting in a bunch of write statements, I traced the 
symptom to $GEMPAKHOME/source/nmaplib/nsf/nsfdspl.f where it was calling
nsf_tlst and using endtim. Since my time window was far from the endtim, it was 
not plotting any data. I switched endtim to dattim and things appear to be 
working both on current data and retrospective data.

Here's the line in nsfdspl.f that was modified. 


c jdh 01/01 replaced endtim with dattim in call as it made it impossible
c to plot data from previous year
        CALL NSF_TLST ( alias, cycle, isbcat, dattim, mrange,
     +                  timstr, lenstr, numt, iret )

I'm not sure if this solves the problem entirely, but at least I'm looking at 
both current and old surface data now.

Regards,

John

-----------------------------------------------------------------------------




>From: Clint Rowe <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200102202108.f1KL8sL09860

>--Leap_of_Leopards_202_000
>Content-Type: TEXT/plain; charset=us-ascii
>Content-MD5: nxtRxowX+rgbp6KtnX5QcQ==
>
>Chiz,
>
>I got some gempak data for a comet case study (#14) to use in class and was
>planning to use namp and nmap2.  Mark also decided to make use of this case
>(and probably others) and started playing with things before I was ready, so
>now I'm forced to figure out what to do.  The Comet data are in /wx/COMET_014,
>so I wrote a little script (attached) to change $GEMDATA to point to that
>directory.  All is well for Nmap (and Garp and Nsharp, BTW), but Nmap2 refuses
>to load any surface or upperair data from the case study.  It loads model data
>without a problem, but not surface or upperair.  Do you have any idea why this
>might be happening?  I was under the impression that Nmap and Nmap2 used the
>same environment variables and resource files -- is there something I'm missin
> g.
>
>Also, I had to change the filenames for surface and upperair files from
>YYMMDD to YYYYMMDD format for Nmap (and, I thought, Nmap2) to work correctly -
> -
>I guess that's a reverse-Y2K problem!  Maybe there should be some mention made
>of that on the Comet case study page, so others don't beat their head on the
>table trying to figure out why they can't get data into Nmap.
>
>Clint
>
>====================================================================
>Clinton M. Rowe
>Associate Professor 
>Meteorology/Climatology Program                  phone:(402)472-1946
>Department of Geosciences                          fax:(402)472-4917
>University of Nebraska-Lincoln                        address@hidden
>
>
>--Leap_of_Leopards_202_000
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>--Leap_of_Leopards_202_000
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>--Leap_of_Leopards_202_000--
>