[CAP] Geospatial Elements

[Art Botterell]

Let's remember, though, that CAP is an international standard.  Anything that looks like an attempt to impose US-local standards will, if previous experience is any guide, be resisted with considerable vigor.

-Art
  
-----Original Message----- 
From: Arnie Shore <3ashore at comcast.net> 
Cc:  <cap-list at lists.incident.com> 
To: Bunge, Bob <Robert.Bunge at noaa.gov> 
 
Sent: 11/5/2007 8:38:44 AM 
Subject: Re: [CAP] Geospatial Elements 
 
At the risk of introducing still more complexity into the lat/long  
discussion, I'll note that there's a shift to the The National Geodetic  
Reference System (*NGRS*).  Information at  
http://www.ngs.noaa.gov/PUBS_LIB/develop_NSRS.html 
 
Arnold Shore 
Annapolis, MD 
 
Bob Bunge wrote: 
> NOAA's National Weather Service (and I assume most other US Govt  
> agencies) is starting to standardize to the current US Federal standards  
> of the North American Datum of 1983 (NAD83) for horizontal positioning  
> and the North American Vertical Datum of 1988 (NAVD88) for elevation  
> values, which  together are known as the National Spatial Reference  
> System (NSRS). 
> 
> NOAA s National Geodetic Survey (NGS) is the federal agency responsible  
> for the specification and maintenance of the NSRS. 
> 
> Is this a need?  I'm not a geospatial datum expert (I'm told there isn't  
> that much difference between the two and other uncertainties are likely  
> much larger when it comes to horizontal products like tornado warnings)  
> so I can't say for sure at this time. 
> 
> Bob Bunge 
> NWS 
> 
> Mick Jagger wrote: 
>    
>> Hi, 
>> 	A number of posts have mentioned changing CAP's geospatial elements to use GML.  I think a clarification needs to be made about whether the posters are talking about full-monty GML, or a custom CAP profile akin to Simple.  To me the question boils down to whether different Coordinate Reference Systems need to be available to CAP.  Anybody have a need for something other than WGS84? 
>>      
> ___ 
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