[GEMPAK #AWA-355949]: Re: Higher resolution topographic gempak sat files

> Hi Steve,
> I was on vacation when you sent this and just had a chance to try it
> out. It looks great!  :)
> 
> Thanks.
>
> Alan

Alan,

OK, sounds like you ahve enough to start working with at the moment. 
I'm moving ahead with grid to image conversion so that all of this
header stuff can be configured by the user (aka you) so that the product
can be tailored as needed.

Steve Chiswell
Unidata User Support








> <br>
> Unidata GEMPAK Support wrote:
> <blockquote cite="address@hidden" type="cite">
> <pre wrap="">Alan,
> 
> Your version of GEMPAK is limited in the channel numbers that will be
> expected in the GINI image, and the channel 16 I used is
> outside of the allowed range. I had thought I made it low enough,
> but didn't. I always increase my allowed channel numbers here since
> the sounder products on NOAAPort use that higher range of numbers.
> 
> I've modified the channel number from 16 down to 5 in the attached
> ustopo_dem5.gini2, and the imgtyp.tbl entry is:
> TOPO                 TOPO_DEM5     0     95     33     16      1 upc_dem5.tbl
> 
> Try this and see if it works for you.
> 
> I'm working on seeing if I can use AREA instead of GINI that would avoid some
> of these hassles- just don't want to create problems reusing old GOES7 numbers
> in case someone is using GOES7 data for something out there.
> 
> Steve Chiswell
> Unidata User Support
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">Hi Steve,
> 
> After not touching this for a while I am now resuming work on it again.
> 
> But still no luck and I am getting the same error:
> 
> "[IM 1]  No image type entry for file ustopo_dem5.gini"
> 
> 
> I did make the correction to the imgtyp.tbl that you suggested:
> 
> TOPO   TOPO-DEM5   0   95   33   32768    1  upc_dem5.tbl
> 
> 
> I am not sure what else to try.
> 
> Alan
> 
> 
> Steve Chiswell wrote:
> </pre>
> <blockquote type="cite">
> <pre wrap="">Alan,
> 
> The entry in imgtyp.tbl you have below has the wrong channel ID. It
> should
> be 32768  (not 32761). The number is channel 16 (which equates to
> 2**(16-1)).
> 
> The gini image is the same format as the remapped imagery that NESDIS
> puts on NOAAPORT. I'm using the GOES-7 satellite ID (shouldn't get any
> conflicts there)
> and channel 16 which is outside the range of bands for GOES-7 as well.
> 
> Steve Chiswell
> Unidata User Support
> 
> 
> On Wed, 2007-01-24 at 09:51 -0500, <a class="moz-txt-link-abbreviated" 
> href="mailto:address@hidden";>address@hidden</a> wrote:
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">Steve,
> 
> I was able to provide to the requestor a 300 dpi copy of the chart in
> question with the old "low res" topo as they don't need the hi res for a
> while.
> 
> So now I am trying to play with it a bit and am stuck.
> 
> Here's what I did.
> 
> 1. Downloaded the ustopo_dem5.gini and upc_dem5.tbl from the links you
> provided.
> 
> 2. Then copied locally a copy of the imgtyp.tbl into the same directory
> I am running gpmap.
> 
> 3.  Next I added the following entry to that, per your recommendation:
> TOPO      TOPO_DEM5    0 95 33  32761 upc_dem5.tbl
> 
> 4. And finally this is what I have for entries in gpmap
> MAP      = 1
> MSCALE   = 0
> GAREA    = dset
> PROJ     = sat
> SATFIL   = ustopo_dem5.gini
> RADFIL   =
> IMCBAR   =
> LATLON   =
> PANEL    = 0
> TITLE    = 1
> TEXT     = 1
> CLEAR    = YES
> DEVICE   = XW
> LUTFIL   = upc_dem5.tbl
> 
> Yet when I run it I get this error:
> 
> "[IM 1]  No image type entry for file ustopo_dem5.gini"
> 
> I'm not sure what I am doing wrong here. Any recommedations would be
> greatly appreciated.
> 
> I assume that the "gini" file is in the correct format and doesn't need
> to be converted?
> 
> Thanks
> 
> Alan
> 
> 
> 
> 
> 
> 
> 
> ----- Original Message -----
> From: Steve Chiswell <a class="moz-txt-link-rfc2396E" 
> href="mailto:address@hidden";>&lt;address@hidden&gt;</a>
> Date: Thursday, January 11, 2007 5:58 pm
> Subject: Re: Higher resolution topographic gempak sat files
> 
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">Alan,
> 
> I'll be out of the office next week for the AMS,  but would be
> happy to
> work with you
> more after I return.
> 
> It would be possible for me to provide you with the topo to grid to
> image programs,
> but you would have to run my binaries to do that until your version of
> GEMPAK is capable of handling larger grids (since I use the grid
> navigation routines to handle the
> transformation from lat/lon projection to other projections). So,
> for a
> quick start,
> I provided a sample using the 5min dem data since it included
> bathymetryas the image you are currently using does.
> 
> I created a ~6km resolution GIF as a sample from the 5min dem data at:
> <a class="moz-txt-link-freetext" 
> href="http://www.unidata.ucar.edu/staff/chiz/gifs/topo_nam.gif";>http://www.unidata.ucar.edu/staff/chiz/gifs/topo_nam.gif</a>
> 
> You can download the gini file that created the image at:
> <a class="moz-txt-link-freetext" 
> href="http://www.unidata.ucar.edu/staff/chiz/gifs/ustopo_dem5.gini";>http://www.unidata.ucar.edu/staff/chiz/gifs/ustopo_dem5.gini</a>
> 
> For GINI, I used the GOES7 satellite ID here since you probably cannot
> remap an unused ID with your version of GEMPAK. The
> $GEMTBL/sat/imgtyp.tbl entry to display this image is:
> TOPO                 TOPO_DEM5     0     95     33  32768      1
> upc_dem5.tbl
> 
> You can download the color table for your $GEMTBL/luts directory here:
> <a class="moz-txt-link-freetext" 
> href="http://www.unidata.ucar.edu/staff/chiz/gifs/upc_dem5.tbl";>http://www.unidata.ucar.edu/staff/chiz/gifs/upc_dem5.tbl</a>
> 
> The GPMAP parameters to display the image as the GIF above is shown
> below, where I've added:
> BND = lakes/24
> to fill in the lakes as water color (since the DEM data would be above
> sea level and not blue there). You can set the GAREA smaller than dset
> as necessary.
> 
> GAREA  = dset
> PROJ       = sat
> SATFIL   = ustopo_dem5.gini
> BND        = lakes/24
> LUTFIL   = default
> 
> The 30 second data is great for smaller areas where you can take
> advantage of the resolution, more therelater if you feed this is where
> you want to go.
> 
> Steve Chiswell
> Unidata User Support
> 
> On Tue, 2007-01-09 at 14:07 -0500, <a class="moz-txt-link-abbreviated" 
> href="mailto:address@hidden";>address@hidden</a> wrote:
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">Steve,
> 
> It's hard to say just what kind of resolution that we need as I
> 
> </pre>
> </blockquote>
> <pre wrap="">am not
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">sure what we are currently using. I think that maybe the one we
> 
> </pre>
> </blockquote>
> <pre wrap="">use is 5
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">min. We have had it for at least 5 years.
> 
> I really do not want this to be a lot of work for you. Is there
> 
> </pre>
> </blockquote>
> <pre wrap="">any way
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">that we could run the grid-to-image conversion on the data so we
> 
> </pre>
> </blockquote>
> <pre wrap="">could&gt; play around with various data sets to see what we like?
> (That assumes it
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">would run on our workstations, which run RHEL3 and RHEL4.) It
> 
> </pre>
> </blockquote>
> <pre wrap="">would be
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">nice to have some background for general use that is better than
> 
> </pre>
> </blockquote>
> <pre wrap="">what we
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">have now but also a much better background if we need to produce
> 
> </pre>
> </blockquote>
> <pre wrap="">much&gt; higher quality images for publication.
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">Alan
> 
> 
> ----- Original Message -----
> From: Steve Chiswell <a class="moz-txt-link-rfc2396E" 
> href="mailto:address@hidden";>&lt;address@hidden&gt;</a>
> Date: Tuesday, January 9, 2007 12:43 pm
> Subject: Re: Higher resolution topographic gempak sat files
> 
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">Alan,
> 
> I have created both 30 second and 5 minute global topography
> 
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">(dem)
> 
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">datasets.
> The 5 minute dem data has bathymetry, while the 30 second data
> 
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">set
> 
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">doesnot.
> 
> I provide these as a grid
> (<a class="moz-txt-link-freetext" 
> href="http://www.unidata.ucar.edu/downloads/gempak/tables/";>http://www.unidata.ucar.edu/downloads/gempak/tables/</a>)
> for use with a program I call GDTOPO which allows users to
> 
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">create a
> 
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">subset for a Gempak grid file. However, it would be possible to
> 
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">map
> 
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">thegrid into an image to use as a background using the same
> 
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">grid to
> 
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">imageconversion that I do for our
> radar composite images.
> 
> If you can provide some information regarding the resolution
> (pixel--&gt;km) you
> need, I can look into making some background images.
> 
> Steve Chiswell
> Unidata User Support
> 
> 
> 
> 
> On Tue, 2007-01-09 at 10:50 -0500, Alan Robson wrote:
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">Hi Mr Chiswell,
> 
> My name is Alan Robson and I work in the Development and
> 
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">Training
> 
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">Branch
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">of the Hydrometeorological Precipitation Center in Camp
> 
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">Springs,
> 
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">Maryland.   I am not sure if you the right person to address
> 
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">this
> 
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">request to and hope you will forward it to the appropriate
> 
> </pre>
> </blockquote>
> <pre wrap="">individual if
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">you are not.
> 
> We produce many meteorological products for our webpage (
> <a class="moz-txt-link-freetext" 
> href="http://www.hpc.ncep.noaa.gov/";>http://www.hpc.ncep.noaa.gov/</a> ) that 
> use a fairly low
> 
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">resolution
> 
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">topographic gempak sat file as a background.   This is a
> 
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">sample
> 
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">of one
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">of our most popular products that gets very many webhits:
> <a class="moz-txt-link-freetext" 
> href="http://www.hpc.ncep.noaa.gov/noaa/noaa.gif";>http://www.hpc.ncep.noaa.gov/noaa/noaa.gif</a>
> 
> We are currently attempting to improve the appearance of our
> 
> </pre>
> </blockquote>
> <pre wrap="">products
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">and need to find a higher resolution version of the
> 
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">topographic
> 
> </pre>
> <blockquote type="cite">
> <blockquote type="cite">
> <pre wrap="">gempak
> 
> </pre>
> <blockquote type="cite">
> <pre wrap="">satellite file to use as a background.
> 
> Can you help us or give me the name of someone who can?
> 
> Thanks
> 
> Alan Robson
> HPC/NCEP
> Camp Springs, MD
> 
> 
> </pre>
> </blockquote>
> <pre wrap="">--
> Steve Chiswell <a class="moz-txt-link-rfc2396E" 
> href="mailto:address@hidden";>&lt;address@hidden&gt;</a>
> Unidata
> 
> 
> </pre>
> </blockquote>
> </blockquote>
> <pre wrap="">--
> Steve Chiswell <a class="moz-txt-link-rfc2396E" 
> href="mailto:address@hidden";>&lt;address@hidden&gt;</a>
> Unidata
> 
> 
> </pre>
> </blockquote>
> </blockquote>
> </blockquote>
> <pre wrap="">
> </pre>
> </blockquote>
> <pre wrap=""><!---->
> 
> Ticket Details
> ===================
> Ticket ID: AWA-355949
> Department: Support GEMPAK
> Priority: Normal
> Status: Closed</pre>
> </blockquote>
> </body>
> </html>
> 
> 


Ticket Details
===================
Ticket ID: AWA-355949
Department: Support GEMPAK
Priority: Normal
Status: Closed