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[GEMPAK #JUU-911978]: gempak satellite images

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  • Subject: [GEMPAK #JUU-911978]: gempak satellite images
  • Date: Fri, 25 May 2007 11:40:06 -0600
Justin,

Here is a web page describing what I did to composite topography and satellite 
imagery
into a single image product:
http://www.unidata.ucar.edu/software/gempak/examples/image_to_grid/sat_basemap/

Steve Chiswell
Unidata User Support



> > Hi,
> >
> > We are attempting to use a basemap or mcidas topo area file with gempak and 
> > overlay mcidas satellite images. Is this possible? The attached image is 
> > the look we are trying to emulate.
> >
> >
> > Thank you,
> >
> > Justin
> >
> >
> 
> 
> Justin,
> 
> Within GEMPAK, you can only display 1 image at a time, so it isn't possible
> to use a topo area as a satfil and then overlay a second satfil.
> 
> The way that the product can be created in GEMPAK is to convert the satellite 
> file to a
> grid using a program I have created called IMG2GD, and then use grid 
> functions to combine a
> topo field with the satellite image, then convert the composite grid back to 
> an image
> using a second program called GD2IMG.I have added functionality of these 
> programs in the 5.10.2
> release and tweaked in the past month or so.
> 
> I have attached a sample image I created using your jpg as a guide. I'll put 
> together
> an example web page as a guide for how to create the composite grid --> image
> and color table to display the composite since it will be a generally useful 
> guide for others as well.
> 
> Steve Chiswell
> Unidata User Support
> 
> 


Ticket Details
===================
Ticket ID: JUU-911978
Department: Support GEMPAK
Priority: Normal
Status: Closed