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20040310: 20040310: 20040302: Level III



Jimmy,

The colors specified in the vad product itself denote the RMS of wind speed.

As mentioned in the gdvad help file, you can display the RMS ranges as a 
color bar with:
   CLRBAR specifies the attributes used to plot the RMS ranges
    of the VAD winds.

Steve Chiswell
Unidata User Support

>From: address@hidden
>Organization: UCAR/Unidata
>Keywords: 200403110356.i2B3uKrV008998

>Steve-
>I am curious to know what the colors mean on vad display. I see red
>barbs, blue barbs and ND. Nd means no data, and I am guessing that the
>colors are referring to some signal to noise ratio or velocity variance
>thresh-hold?
>Thanks again!
>jimmyc
>
>
>On Wed, 10 Mar 2004,
>Unidata Support wrote:
>
>>
>>Jimmy,
>>
>>I'll assume Linux?
>>
>>See the gempak downloads contrib area:
>>http://my.unidata.ucar.edu/modules.php?name=Downloads&d_op=viewsdownload&sid=
> 9
>>
>>I placed 2 files out there (so far), a source and a Linux binary.
>>
>>To install the Linux binary, download the tarfile to your $NAWIPS
>>directory and unpack from there with:
>>gunzip -c gpvad_linux.tar.gz | tar xvf -
>>
>>To specify a NEXRAD Level III file, you can either give RADFIL
>>the name, or use a template.
>>
>>To use the NEXRIII template as defined in $GEMTBL/config/datatype.tbl,
>>as an example,
>>
>>RADFIL =  NEXRIII|ILX|NVW
>>RADTIM =  current
>>WIND   =  bk1
>>TITLE  =  1/-2/ILX VAD DISPLAY ~
>>PANEL  =  0
>>DEVICE =  XW
>>CLEAR  =  y
>>TEXT   =  1/1/1/hw
>>CLRBAR =  1/v/cl/.05;.5/.3;.01
>>GEMPAK-GPVAD>
>>
>>
>>The NEXRIII template uses %SITE% = ILX and %PROD% = NVW
>>in composing the file template in this example. NVW is the
>>only valid %PROD% value.
>>
>>Steve Chiswell
>>Unidata User Support
>>
>>
>>
>>
>>>From: address@hidden
>>>Organization: UCAR/Unidata
>>>Keywords: 200403102228.i2AMSDrV003046
>>
>>>Ill be safe and say binary. Today has not been a good compilation day
>>>for me.
>>>Thanks very much!
>>>jimmyc
>>>
>>>On Wed, 10 Mar 2004, Unidata Support wrote:
>>>
>>>>
>>>>Jimmy,
>>>>
>>>>I have created a NIDS VAD display program.
>>>>Do you ant a source code file or a binary?
>>>>
>>>>Steve Chiswell
>>>>Unidata User SUpport
>>>>
>>>>
>>>>>From: address@hidden
>>>>>Organization: UCAR/Unidata
>>>>>Keywords: 200403030333.i233XnrV028708
>>>>
>>>>>Is it possible to use GEMPAK to display the VAD wind profile? If no, then
>>>>>can I add it to the future "to do" list?
>>>>>Thanks!
>>>>>
>>>>>James Correia Jr.
>>>>>Ph.D. Candidate in Agricultural Meteorology
>>>>>Dept. of Agronomy, Iowa State University
>>>>>*********************************************
>>>>>Email: address@hidden
>>>>>Phone: 515-294-5587
>>>>>Web: http://www.mesoscale.iastate.edu/jimmyc/
>>>>>*********************************************
>>>>>"Imagination is more important than knowledge."
>>>>>-Einstein
>>>>>
>>>>>"There is a difference between knowing the path and walking the path"
>>>>>-"Morpheus"
>>>>>
>>>>--
>>>>***************************************************************************
> *
>>>>Unidata User Support                                    UCAR Unidata Progra
> m
>>>>(303)497-8643                                                  P.O. Box 300
> 0
>>>>address@hidden                                   Boulder, CO 8030
> 7
>>>>---------------------------------------------------------------------------
> -
>>>>Unidata WWW Service              http://my.unidata.ucar.edu/content/support
>>>>---------------------------------------------------------------------------
> -
>>>>NOTE: All email exchanges with Unidata User Support are recorded in the
>>>>Unidata inquiry tracking system and then made publically available
>>>>through the web.  If you do not want to have your interactions made
>>>>available in this way, you must let us know in each email you send to us.
>>>>
>>>
>>>--
>>>James Correia Jr.
>>>Ph.D. Candidate in Agricultural Meteorology
>>>Dept. of Agronomy, Iowa State University
>>>*********************************************
>>>Email: address@hidden
>>>Phone: 515-294-5587
>>>Web: http://www.mesoscale.iastate.edu/jimmyc/
>>>*********************************************
>>>"Imagination is more important than knowledge."
>>>-Einstein
>>>
>>>"There is a difference between knowing the path and walking the path"
>>>-"Morpheus"
>>>
>>--
>>**************************************************************************** 
>>Unidata User Support                                    UCAR Unidata Program 
>>(303)497-8643                                                  P.O. Box 3000 
>>address@hidden                                   Boulder, CO 80307 
>>---------------------------------------------------------------------------- 
>>Unidata WWW Service              http://my.unidata.ucar.edu/content/support  
>>---------------------------------------------------------------------------- 
>>NOTE: All email exchanges with Unidata User Support are recorded in the
>>Unidata inquiry tracking system and then made publically available
>>through the web.  If you do not want to have your interactions made
>>available in this way, you must let us know in each email you send to us.
>>
>
>James Correia Jr.
>Ph.D. Candidate in Agricultural Meteorology
>Dept. of Agronomy, Iowa State University
>*********************************************
>Email: address@hidden
>Phone: 515-294-5587
>Web: http://www.mesoscale.iastate.edu/jimmyc/
>*********************************************
>"Imagination is more important than knowledge."
>-Einstein
>
>"There is a difference between knowing the path and walking the path"
>-"Morpheus"
>
--
NOTE: All email exchanges with Unidata User Support are recorded in the
Unidata inquiry tracking system and then made publically available
through the web.  If you do not want to have your interactions made
available in this way, you must let us know in each email you send to us.