Re: [gembud] Gempak 6.0

I'm not understanding why you think it does it automatically, unless I'm 
missing something..
all the examples I've seen, and the docs say it is configured for you to have 
the data already on your server,
(via LDM or NOAAport), even the datatype.tbl sets the data resource's to local 
system directories
I think it would be extremely useful for you to read, not just skim, but read 
the docs..
get familiar with bash scripting

Jeff Lake K8JSL
http://www.MichiganWxSystem.com
https://www.TheWeatherCenter.net







----- Original Message ----- From: "Foland, Michael" <mfoland@xxxxxxxxxxxxxxx>
To: <gembud@xxxxxxxxxxxxxxxx>
Sent: Friday, October 08, 2010 1:24 PM
Subject: [gembud] Gempak 6.0


Can someone make this as a RPM and with the ability to pull in model data? I
got mine off noaaport (GEMPAK 5.11.4), but it does not pull in models. I am
still a noob at linux and need some assistance. If someone could please make
an RPM with the working models for CentOS 5.5, 32 bit, that would be great!

Also I found a solution if you are playing with the watch boxes and tried to
do a watch status message but county list doesn't update. After you delete
what counties you want cleared, you can click LIST and click delete from
list.. after you click the watch, then you can delete what counties you want
out and click APPLY. You can also change the circles to black and smallest
size and width, so they don't show on the watch. I thought I'd share that
with you. :)

--Mike

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Subject: gembud Digest, Vol 21, Issue 3

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Today's Topics:

  1. GDDIAG - MASK FUNCTION BUG? (Evan Lowery)


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

Message: 1
Date: Fri, 8 Oct 2010 08:20:31 -0400
From: "Evan Lowery" <elowery@xxxxxxxxxxxx>
To: <gembud@xxxxxxxxxxxxxxxx>
Subject: [gembud] GDDIAG - MASK FUNCTION BUG?
Message-ID: <002c01cb66e3$33a853f0$9af8fbd0$@com>
Content-Type: text/plain; charset="us-ascii"

Hello all,



I've found a possible bug (or user error) with GDDIAG and the MASK grid
function, but wanted to check with everyone here before sending out an
official support request.



Within a GEMPAK grid file (test.grd), I have a temperature field (TEMPA)
which needs to be masked to only show values between a certain temperature
range (>=80F).  I run this process daily, and have never had a problem up
until this point.  When NO temperatures in TEMPA are >=80F, the MASK
function generates an erroneously large number rather than -9999.00
(RMISSD).



Dataset:                                               test.grd



gdlist

GDATTIM=101007/0000F001

GLEVEL=0

GVCORD=NONE

GFUNC=TEMPA



Using GDLIST (tempa.dat) I see that TEMPA:

MINIMUM AND MAXIMUM VALUES     1.03    60.00



Goal: only keep temperatures  >=80F



gddiag

GDATTIM=101007/0000F001

GLEVEL=0

GVCORD=NONE

GFUNC=MASK(TEMPA,SGE(TEMPA,80))

GRDNAM=TEMPB

GRDTYP=S

GPACK=

GRDHDR=

PROJ=

GRDAREA=

KXKY=

MAXGRD=

CPYFIL=

ANLYSS=



Using GDLIST (tempb.dat) I see that TEMPB:

MINIMUM AND MAXIMUM
VALUES9999999848243207295109594873856.009999999848243207295109594873856.00



I would expect all TEMPB values to be -9999.00 (RMISSD) since no
temperatures are greater than 80F, but instead it blows up and returns a
very large value.



http://www.unidata.ucar.edu/cgi-bin/gempak/manual/apxB_index

MASK  Masking function        MASK (S1, S2) = RMISSD IF S2 = RMISSD

                                           = S1 otherwise



In this example TEMPA had no values >=80F, but my csh scripts are constantly
mining through temperature grids, and "usually" there are values >=80F.



Has anyone ever experienced this type of result?  If yes, do you know a work
around to get the grid (TEMPB) with all values = -9999.00 (RMISSD) rather
than erroneously large values?



Regards,

Evan Lowery

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