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20010216: netCDF satellite imagery for NAWIPS

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  • Subject: 20010216: netCDF satellite imagery for NAWIPS
  • Date: Wed, 28 Feb 2001 12:59:11 -0700
Kevin,

I think the Garp problem exists where the developers of Garp copied over
their own version of a GEMPAK file and modified it for their uses-
unfortunately, that means it has to be edited separately to enjoy the
new features of GEMPAK (recall, Garp isn't part of GEMPAK).

In: $GARPHOME/gempak/readimgdata.c, the switch ( imgtyp ) section
about line 107, needs an option:
          case IFNCDF:  /* NetCDF files */

            crncdf ( filnam, &ier ) ;
            break;

I will include that in my 5.6.B release in a few weeks. 

Are you building from source? Or have you downloaded a binary that I provided?
I can send you a binary if the latter is the case. Since I don't have any
NetCDF images to test on,it would be nice if I could test it out on
one of your images if you want me to send you a binary.

Steve Chiswell
Unidata User Support


On Wed, 28 Feb 2001, Kevin Polston wrote:

> Hi Steve,
> 
> I don't quite understand what is going on here. I am downloading and
> displaying netCDF satellite data with NSAT.  However....when I use GARP and
> try to display a satellite image I get a blank screen with a map background
> and at the bottom of the screen it says "No Image".  I don't understand why
> that won't work in GARP.  Also, I noticed in NSAT that the netCDF images won't
> zoom in like they did with the AREA files. Unfortunately, I cannot overlay
> other data when using NSAT like I can with GARP  - thus the reason why I would
> like to be able to display the netCDF images in GARP.  If you have any answers
> I would appreciate it. Thanks.
> 
> KP
> 
> Steve Chiswell wrote:
> 
> > Kevin,
> >
> > The GEMPAK device drivers for XW, GF, GIF, TIF, PS are the
> > drivers that support the image display. Any program using those
> > devices can display the images.
> >
> > As I wrote below regarding NSAT:
> > > > You should be able to verify that GEMPAK can view your NetCDF files
> > > > by using
> > > > NSAT from the "FILE-->User_Defined" pulldown and browsing your
> > > > data directories for the data
> >
> > Steve Chiswell
> > Unidata User Support
> >
> 
>