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[aprssig] future problems with NWS radar images?

Gerry Creager N5JXS gerry.creager at tamu.edu
Tue Mar 29 16:21:13 UTC 2005


Steve's correct at those ranges.

Steve Dimse wrote:
> 
> On Mar 28, 2005, at 5:13 PM, Wes Johnston wrote:
> 
>> I started a conversation with my local NWS data guru about getting 
>> transparent
>> doppler images (with the gridding and county line overlays), and he has
>> referred me to a man up in Maryland.  In my conversation with the guy 
>> in MD, he
>> let the cat out of the bag that they are redoing the nexrad radar 
>> websites and
>> are adding some glitzy graphics, but will also offer transparent 
>> images.  The
>> red flag went up when I looked at the _projection_ they use.  It is no 
>> longer
>> orthogonal!  It's a spherical projection that looks like it'll make 
>> the doppler
>> radar GIF files pulled from the NWS sites unsuitable for findu, ui-view,
>> winaprs, and xastir....
>>
>>
> At that scale (250-300  miles edge to edge) I would think projection 
> should not make much of a difference. Any map gurus care to comment...
> 
> Personally, I do not like the new maps they are putting under this 
> radar. While at first glance it looks better, the sole purpose of the 
> map in this case is to orient the user, and while the new map does this, 
> I do not think it does it any better, while the additional eye candy 
> makes it harder to sort out the radar data...
> 
> Steve K4HG
> 
> 
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-- 
Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University	
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