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20000116: Land masking grids

Chris,
You may have to use a higher resolution landmask to accomplish
what you need, and interpolate your data (gdbiint for example) 
to the higher resolution grid. You could use the LAND mask in the
1x1 degree mrf or avn data sets available on the NWS ftp server.

What grids are used in your display?

Steve Chiswell
Unidata User Support



>From: address@hidden (Chris Hennon)
>Organization: .
>Keywords: 200001171807.LAA28227

>Steve -
>
>I cleaned out the dead queues and now it appears that everything is
>working normally.
>
>I had sent an email last week or so regarding overlaying continental land
>masses over coarse SST grids to make a pretty map (subject: making pretty
>maps).  Any ideas on that or do I have to go with what I have?
>
>Thanks.
>
>Chris
>
>================================================
>| Chris Hennon        Ohio State University   |
>| Tropical Meteorology      address@hidden   |
>|                                              |
>| Dept of Geography   Office: 1155 Derby Hall  |
>| 1036 Derby Hall     Phone : (614) 292-2704   |
>| Columbus, OH 43210  Fax   : (614) 292-6213   |
>================================================
>
>On Sun, 16 Jan 2000, Unidata Support wrote:
>
>> 
>> Chris,
>> 
>> The queues shown by ipcs are those that are orphaned
>> when you had to ctrl-c out of the program.
>> 
>> Remove the queues with the ipcrm command like "ipcrm -q 1" etc.,
>> the scroll of the mailbox messages occurs when the process tries to
>> attatch to the orphaned queue.
>> 
>> After you remove the queues, try running again. It could be that
>> you were unable to connect to the X display the first time, or
>> that there was a queue already in use. Let me know if the
>> problem persists. Its possible that a copy of gplt that
>> had been running previously (before pl15) was still in use at
>> the time.
>> 
>> Steve Chiswell
>> Unidata User Support
>> 
>> >From: address@hidden (Chris Hennon)
>> >Organization: .
>> >Keywords: 200001170058.RAA03824
>> 
>> >Steve -
>> >
>> >I installed pl15 on my system and now am having problems running scripts
>> >that ran fine on pl12.  When I try to write a gf within a script using
>> >gdcntr, gempak gives me: 
>> >
>> >*** TERMINATING gf
>> >*** Received signal 10 SIGBUS
>> >
>> >and then it hangs.  A ctl-c gives me this:
>> >
>> >*** TERMINATING gpend
>> >*** Received signal 2 SIGINT
>> >0.0u 0.0s 0:22 0% 0+0k 0+0io 0pf+0w
>> >
>> >When I try to run gdcntr outside of a script and create a gif, I get an
>> >infinite scroll of:
>> >
>> >Error in message send = 22
>> >itype, ichan, nwords,2,3,2
>> >
>> >A "ps -e" shows no rogue gplt's around.  Also, "ipcs" shows:
>> >
>> >IPC status from <running system> as of Sun Jan 16 19:53:22 EST 2000
>> >T         ID      KEY        MODE        OWNER    GROUP
>> >Message Queues:
>> >q          0   0x47000697 -Rrw-rw-rw-   gempak      ldm
>> >q          1   0x44000697 -Rrw-rw-rw-   gempak      ldm
>> >q          2   0x47000699 -Rrw-rw-rw-   gempak      ldm
>> >Shared Memory:
>> >m          0   0x500007a4 --rw-r--r--     root     root
>> >Semaphores:
>> >
>> >The xw device seems to work fine.  I'm running on Solaris 5.7.  I
>> >installed the latest patch in an entirely new directory than the old one,
>> >which I have now eliminated from my system.  I built pl15 and installed it
>> >without a problem.  
>> >
>> >Thanks for any feedback.
>> >
>> >Chris
>> >
>> >================================================
>> >| Chris Hennon             Ohio State University   |
>> >| Tropical Meteorology      address@hidden   |
>> >|                                              |
>> >| Dept of Geography   Office: 1155 Derby Hall  |
>> >| 1036 Derby Hall     Phone : (614) 292-2704   |
>> >| Columbus, OH 43210  Fax   : (614) 292-6213   |
>> >================================================
>> >
>> 
>> ****************************************************************************
>> Unidata User Support                                    UCAR Unidata Program
>> (303)497-8644                                                  P.O. Box 3000
>> address@hidden                                   Boulder, CO 80307
>> ----------------------------------------------------------------------------
>> Unidata WWW Service                        http://www.unidata.ucar.edu/     
>> ****************************************************************************
>> 
>
>From address@hidden  Tue Jan 11 14:51:35 2000
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>Date: Tue, 11 Jan 2000 16:53:31 -0500 (EST)
>From: address@hidden (Chris Hennon)
>X-Sender: chennon@scooby
>To: address@hidden
>Subject: making pretty maps
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>Steve -
>
>I'm trying to make a pretty map (see attached gif).  The problem is that
>the parameter I'm calculating is valid only for ocean surfaces.  I've
>utilized the landmask to produce what you see in the image.  Since the
>resolution is very coarse (2.5 x 2.5 degrees), the land/sea edges are
>blocky (not to mention that central America is plastered over).  I was
>hoping that there was a way to overlay land areas only on top of my image,
>so as to get a nice smooth boundary.  As a longshot I tried to use gpmap
>to overlay a map, but that overwrote the entire screen, including my data.
>Do you have any suggestions as to how I can turn this image into a
>presentation quality work of art?  Thanks.
>
>Chris
>
>================================================
>| Chris Hennon        Ohio State University   |
>| Tropical Meteorology      address@hidden   |
>|                                              |
>| Dept of Geography   Office: 1155 Derby Hall  |
>| 1036 Derby Hall     Phone : (614) 292-2704   |
>| Columbus, OH 43210  Fax   : (614) 292-6213   |
>================================================
>
>---559023410-851401618-947627611=:28609
>Content-Type: IMAGE/GIF; name="mpi_aug92.gif"
>---559023410-851401618-947627611=:28609--
>