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20030717: 20030717: 20030716: Gempak - linux -setting the right parameters
- Subject: 20030717: 20030717: 20030716: Gempak - linux -setting the right parameters
- Date: Fri, 18 Jul 2003 12:38:32 -0600
Dusty,
TIMSTN is the number of times and the number of stations
that will be allowedin the file you create.
You can have up to 300 different times in a file, and up to 29,700 stations.
TIMSTN=200/1000 will allow space for 200 times, 1000 stations
(see phelp on TIMSTN).
The snparm=dset will copy all parameters.
The dattim=0000;1200 will only copy the 0Z and 12Z data.
If you have other times with data, then use dattim=all
(note however that if you use dattim=all, you will need TIMSTN set to
allow enough times for up to 8 times per day (every 3 hours)).
Steve Chiswell.
>From: <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200307172009.h6HK9iLd003948
>Steve,
>
>I understand how to do the steps you have shown me bellow but before I
>go storeing all these files in a new one I want to be completely sure of
>some things. If I use the snparm=dset will use all the parameters that
>I have set in my data? Because that's what I need. And does any of
>these variables that you've shown me to set, will that limit my data in
>any way cause I need all of it. Like the dattime=000;1200 or the timstn
>that parameter is unclear to me as excatly what it does. I just want to
>make sure befor I go to all that work.
>Thanks,
>Dusty
>
>-----Original Message-----
>From: Unidata Support [mailto:address@hidden]
>Sent: Thursday, July 17, 2003 11:18 AM
>To: Gillingham, Dustin (Dusty)
>Cc: address@hidden
>Subject: 20030717: 20030716: Gempak - linux -opening multiple files at
>one time
>
>
>
>Dusty,
>
>As I said previously, you will need to place your
>soundings in a single file using SNMOD.
>
>
>>Subject: 20030714: Cross section
>>In-reply-to: Your message of "Wed, 09 Jul 2003 16:32:47 MDT."
>>
>><address@hidden>
>>Date: Mon, 14 Jul 2003 12:30:59 -0600
>>From: Unidata Support <address@hidden>
>>
>>
>>Dusty,
>>
>>I'm assuming from your past questions that you are using sounding data.
>
>>The program SNCROSS can plot a time series at a single station, of a
>>spatial cross section at a single time.
>>
>>For X axis representing time, and Y axis representing height, you would
>
>>set CXSTNS to the station id or WMO number (eg CXSTNS=72365 or
>>CXSTNS=ABQ). The Upper air file should contain all the times for the
>>station. If your data is in separate daily files, then you would use
>>SNMOD to copy data to a single file.
>>
>
>You would do this for each file:
> SNFILE = 20030714_upa.gem
> SNOUTF = abq.gem
> SNPARM = dset
> AREA = @abq
> DATTIM = 0000;1200
> LEVELS = all
> VCOORD = pres
> TIMSTN = 200/1000
> MRGDAT = n
> IDNTYP = stid
> GEMPAK-SNMOD>r
>
> SNMOD PARAMETERS:
>
> Input sounding file: $UPA/20030714_upa.gem
> Output sounding file: abq.gem
> This file will be created with 200 times and 5 stations.
> It is an unmerged file with all mandatory and significant data.
>
> Parameters in the output file:
>
>
> DATTIM: 0000;1200
>
> AREA: @ABQ
>
> LEVELS: all
>
> VCOORD: PRES
> IDNTYP: STID
>
>
> WARNING, IDNTYP is set to STID
>
>Enter <cr> to accept parameters or type EXIT:
> 1 stations were added for time 030714/0000
> 1 stations were added for time 030714/1200
> Parameters requested:
>SNFILE,SNOUTF,SNPARM,AREA,DATTIM,LEVELS,VCOORD,TIMSTN,
> MRGDAT,IDNTYP.
> GEMPAK-SNMOD>
>
>
>the above will take the 0000Z and 1200Z ABQ soundings from
>the file 20030714_upa.gem and move them to abq.gem.
>You would then set SNFILE to the next file and run again. Repeat for
>each file you have. The TIMSTN parameter is set to 200 times in the
>file. Presumably your case has less than 200 sounding times.
>
>
>
>Steve Chiswell
>
>
>
>
>
>
>>From: <address@hidden>
>>Organization: UCAR/Unidata
>
>
>Jeff
>---------------------------------------------------------------------
>Jeff Weber address@hidden :
>Unidata Program Center PH:303-497-8676 :
>University Corp for Atmospheric Research 3300 Mitchell Ln :
>http://www.unidata.ucar.edu/staff/jweber Boulder,Co 80307-3000 :
>---------------------------------------------------------------------
>
>>From: <address@hidden>
>>Organization: UCAR/Unidata
>>Keywords: 200307171534.h6HFYHLd014195
>
>>Steve,
>>I have researched the web and couldn't find anywhere on opening
>multiple
>>files. I want to open 2 or more files from my gempak home directory
>for
>>a sounding parameter. I tried to use the command
>snparm=200006_upa.gem;
>>200007_upa.gem however that didn't work is this even possible?
>>Thanks,
>>Dusty
>>
>>-----Original Message-----
>>From: Unidata Support [mailto:address@hidden]
>>Sent: Wednesday, July 16, 2003 12:43 PM
>>To: Gillingham, Dustin (Dusty)
>>Cc: address@hidden
>>Subject: 20030716: Gempak - linux - display drivers
>>
>>
>>
>>Dusty,
>>
>><CR> is an abbreviation for "carriage return". The carrage return key
>>is also called "Enter" or "Return" on many keyboards. It is not asking
>>you to type "cr" followed by a return.
>>
>>The message:
>>[IP-1] Global file cannot be open for write access
>>indicates that either: 1) you do not have write permission in the
>>directory you are working in, or, 2) a file named gemglb.nts already
>>exists and you do not have write permission for that file.
>>
>>When using the XW and GF device drivers that use the X server, if you
>>are loggen in to your console, you should already have write permission
>
>>to the X display. You should set the DISPLAY environmental
>>variable:
>>setenv DISPLAY :0.0
>>
>>If you are not logged in to the console, you have to have access to the
>
>>console, and the user logged in to the console has to allow you to
>>display there by typing: xhost + `hostname`
>>
>>see the unix man pages on xhost and X, eg "man xhost" and "man X".
>>
>>If you do not have access to the consoile, you can use the PS or GIF
>>drivers. See the tutorial page:
>>http://my.unidata.ucar.edu/content/software/gempak/tutorial/devices.htm
>>l
>>
>>Note that when you use a device driver that writes to an output file,
>>you must use the "gpend" command as decribed at the bottom of the web
>>page discussed above.
>>
>>Steve Chiswell
>>
>>
>>
>>
>>
>>
>>>From: "dusty" <address@hidden>
>>>Organization: UCAR/Unidata
>>>Keywords: 200307161525.h6GFPDif011599
>>
>>>Institution: physical science labrotory
>>>Package Version: 5.6
>>>Operating System: linux
>>>Hardware Information: dell computer
>>>Inquiry: I recently pulled a example off the web to work in gempak and
>>>try to
>>> run and display it well when i run it it runs okay but when it asks
>me
>>to:
>>>Enter <cr> to accept parameters or type exit
>>>and i type cr and then hit enter nothing happens except it just asks
>>>me
>>the sa
>>> me thing over and over. Untill I type exit and then it will exit me
>>out i th
>>> en press e like the example shows and the message displays:
>>>
>>>[IP-1] Global file cannot be open for write access
>>>
>>>So how do i get to see my data on a graph like the example? I tried
>>>using the
>>> XW, PS, and GIF to get it to display and it will only run under the
>>ps, and
>>> gif. I want to be able to see the graph like the one from they're
>>example of
>>> the unidata web site
>>>please help,
>>>Dusty
>>>
>>>
>>>
>>
>>***********************************************************************
>>*
>>Unidata User Support UCAR Unidata
>>(303)497-8643 P.O. Box
>>address@hidden Boulder, CO
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>-
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>>
>
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