[Mapserver-users] Smoothing NEXRAD imagery

[Sean Gillies]

On Tuesday, January 28, 2003, at 09:42  AM, Daryl Herzmann wrote:

> Hello all!
>
> Well, I was playing around today with my various mapserver applications
> and have a question that I hope someone can answer.
>
> I have been working on generating maps of current NEXRAD (Weather
> Service RARAR) imagery and overlaying observations.  This is currently
> working great, except the pixelation that occurs at very close range.
> Does anyone know how to implement an automatic TIFF smoothing 
> algorithm at
> close ranges?
>
> Here is a page with an example of what happens to the NEXRAD image at
> close ranges...  The pixelation at 25km is not that bad and will 
> probably
> be what I live with for the final app.
>
> http://db1.mesonet.agron.iastate.edu/GIS/apps/iem/ex.html
>
> The point in the center of these images is Ames, Iowa :)  We are
> experiencing freezing rain at the moment.
>
> btw, in two weeks, the American Meteorological Society has its annual
> meeting.  I will presenting the glories of mapserver at its first GIS
> session of the IIPS (Information Processing) conference.  It should be
> lots of fun promoting open-source!!
>
> Thanks
>   Daryl
>
> -- 
> /**
>  * Daryl Herzmann (akrherz at iastate.edu)
>  * Program Assistant -- Iowa Environmental Mesonet
>  * http://mesonet.agron.iastate.edu
>  */

Daryl,

Looks great!  I wouldn't sweat the pixelization.  If your users are 
scientists
or weather geeks, they'll want to see the real NEXRAD image without 
smoothing,
yes?

cheers,
Sean

--
Sean Gillies
sgillies at frii.com
http://www.frii.com/~sgillies