20010605: regional radar maps

Tom,

Gdradr does not use an X server. It remaps all the radar images in the 
requested 
region to a common grid projection and samples the data accordingly.

Here is an example from the last Unidata newsletter that I provided
showing the use of the radar data with other data overlays in nmap2:
http://www.unidata.ucar.edu/staff/chiz/gifs/nmapexample.gif

Note that each radar NIDS product is in a local projection, so eventually,
if you are combining fixed images from multiple radars, you will begin to
have problems with overlapping radar regions not aligning.

Steve Chiswell
Unidata User Support



>From: Tom Priddy <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200106051917.f55JHfp16910

>From: Tom Priddy
>
>Would we have to run x-window to do that. Here's what our reg. composite
>looks like using the combine statement:
>http://weather3.ca.uky.edu/ldmdata/images/RADAR/Reg_Radar_KY_NCR.gif
>
>Unidata Support wrote:
>
>> Tom,
>>
>> I provided GDRADR in GEMPAK 5.6.C for creating a GEMPAK grid file
>> of radar data. You can then plot the grid using gdplot2, gdcntr,
>> NMAP2 etc and overlay with any data, including satellite imagery.
>>
>> For examples, see:
>> http://motherlode.ucar.edu/unidata/images/nids/gdradr.html
>>
>> http://www.unidata.ucar.edu/packages/gempak/GEMPAK5.6/whats_new.html#5.6C
>>
>> I am also working on distributing a national, and a floater grib message
>> in the FNEXRAD feed which sites can decode into GEMPAK format.
>>
>> Steve Chiswell
>> Unidata User SUpport
>>
>> >From: Tom Priddy <address@hidden>
>> >Organization: UCAR/Unidata
>> >Keywords: 200106051428.f55ESKp29118
>>
>> >From: Tom Priddy
>> >
>> >Steve....we're trying to create a regional radar map using the nexrad
>> >data.
>> >While we've had some success with gpmap....the only way we can overlay
>> >the radars is to use the combine command in our scripts. Is there a way
>> >to product a regional radar uisng a different gempak command?/ktp
>> >
>> >--
>> >===========================================================================
>> >
>> >Tom Priddy,  Extension Ag. Meteorologist.....email: address@hidden
>> >Ag. Weather Center.............................fax: 859-257-5671
>> >243 Ag. Engineering Bldg.....................phone: 859-257-8803 ext 245
>> >
>> >Dept. of Biosystems and Ag. Engr.
>> >University of Kentucky
>> >Lexington, KY 40546-0276
>> >HOMEPAGE......................................http://wwwagwx.ca.uky.edu/
>> >
>> >===========================================================================
>> >
>> >
>> >
>>
>> ****************************************************************************
>> 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/     
>> ****************************************************************************
>
>--
>===========================================================================
>Tom Priddy,  Extension Ag. Meteorologist.....email: address@hidden
>Ag. Weather Center.............................fax: 859-257-5671
>243 Ag. Engineering Bldg.....................phone: 859-257-8803 ext 245
>Dept. of Biosystems and Ag. Engr.
>University of Kentucky
>Lexington, KY 40546-0276
>HOMEPAGE......................................http://wwwagwx.ca.uky.edu/
>===========================================================================
>
>