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20011116: 6km mosaic GEMPAK files

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  • Subject: 20011116: 6km mosaic GEMPAK files
  • Date: Fri, 16 Nov 2001 11:32:03 -0700
Patrick,

The composites are best viewed either with NMAP2 as the gui,
or gdplot2 from the command line.

The $GEMTBL/config/datatype.tbl file has aliases for
the national mosaic as NEXR and the regional as NEXL and NEXF
(for a floater and or a local you would create for your own region).

The $GEMTBL/nmap/mod_res.tbl provides for two products:
Radar_Reflectivity and Radar_Reflectivity_qc
You may want to add "nexf" to the "nexr;nexl" list as well.

The difference between the two products above is that
Radar_Reflectivity uses a gdplot2 TYPE=Z and
Radar_Reflectivity_qc uses a gdplot2 TYPE=F.
The former just fills in the grid boxes. The later contours the data
for a slightly smoother appearance.

If you are looking for an example of plotting the data in gdplot2, use the
restore files mentioned in the mod_res.tbl entry as a guide and
consult the GDRADR page for examples of how to
use the grids in precipitation type plots, etc.
http://www.unidata.ucar.edu/packages/gempak/examples/gdradr/
look at the section "Using radar data in grid calculations"/

Steve Chiswell
Unidata User Support






>From: "Patrick O'Reilly" <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200111161746.fAGHk7N10993

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>Hello -
>
>I have begun receiving, decoding and filing the 6km mosaic files in .gem =
>format via the NMC3 feed on the IDD.  I was wondering if there were =
>instructions on viewing these files in GARP, i.e. Garp_Defaults entries, =
>etc. (if this is even possible).    If it is necessary to view them =
>explicitly with GEMPAK, which program is best suited for this?  Thanks =
>for the assistance.
>
>Patrick
>
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>Patrick O'Reilly                               Support Scientist
>The STORM Project            address@hidden
>208 Latham Hall                             ph: 319-273-3789
>University of Northern Iowa
>Cedar Falls, IA 50614            =20
>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  =20
>
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><DIV><FONT face=3D"MS Sans Serif" size=3D2>Hello -</FONT></DIV>
><DIV><FONT face=3D"MS Sans Serif" size=3D2></FONT>&nbsp;</DIV>
><DIV><FONT face=3D"MS Sans Serif" size=3D2>I have begun receiving, =
>decoding and=20
>filing the 6km mosaic files in .gem format via the NMC3 feed on the =
>IDD.&nbsp; I=20
>was wondering if there were instructions on viewing these files in GARP, =
>i.e.=20
>Garp_Defaults entries, etc. (if this is even =
>possible).&nbsp;&nbsp;&nbsp; If it=20
>is necessary to view them explicitly with GEMPAK, which program is best =
>suited=20
>for this?&nbsp; Thanks for the assistance.</FONT></DIV>
><DIV><FONT face=3D"MS Sans Serif" size=3D2></FONT>&nbsp;</DIV>
><DIV><FONT face=3D"MS Sans Serif" size=3D2>Patrick</FONT></DIV>
><DIV>&nbsp;</DIV>
><DIV><FONT face=3D"MS Sans Serif"=20
>size=3D2>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<BR>Patrick=20
>O'Reilly&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
>;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
>Support Scientist<BR>The STORM=20
>Project&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
> <A=20
>href=3D"mailto:address@hidden";>address@hidden</A><BR>20=
>8 Latham=20
>Hall&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
>sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
>p;&nbsp;&nbsp;&nbsp;&nbsp;=20
>ph: 319-273-3789<BR>University of Northern Iowa<BR>Cedar Falls, IA=20
>50614&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
>bsp;=20
><BR>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~&nbsp;&nbsp;=20
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