[georss] GeoRSS for earthquake/tsunami reporting

[Josh@oklieb]

Brian,

There isn't necessarily a "right" way, although there are plenty of  
"wrong" ways to encode information. To some extent, it depends on  
what you want to do with the georss feed. If it's for public  
information, you might be best off putting some HTML in the <content>  
element to explain the magnitude and what it means. If you have in  
mind some application which maps circles proportional to magnitude,  
you'd best know how such an application would work and also include  
at least a legend graphic link. If you are passing specialist  
attributes, such as updating remote earthquake registries, then it  
would make sense to insert elements into GeoRSS from a specific  
application schema for seismic events. These different targets could  
even be addressed in the same feed, since applications are just  
supposed to ignore elements they don't understand, but make sure that  
the right targets can understand the right information. The radius  
tag specifically indicates the spatial extent or spatial ambiguity of  
the information in the feed, not the magnitude of some other attribute.

Cheers,

Josh

Joshua Lieberman, Ph.D.
Principal, Traverse Technologies Inc.
mailto:jlieberman at traversetechnologies.com
tel +1 (617) 395-7766
fax: +1 (815) 717-981


On Dec 31, 2006, at 1:39 PM, Ron Lake wrote:

> Sooner or later you will need the idea of application schemas as in  
> GML
> so that you can have defined application vocabularies without
> overloading existing terms not intended for the purpose.
>
> R
>
> -----Original Message-----
> From: georss-bounces at lists.eogeo.org
> [mailto:georss-bounces at lists.eogeo.org] On Behalf Of Christopher  
> Schmidt
> Sent: December 30, 2006 1:59 AM
> To: Brian Shiro
> Cc: georss at lists.eogeo.org
> Subject: Re: [georss] GeoRSS for earthquake/tsunami reporting
>
> On Fri, Dec 29, 2006 at 11:42:04PM -1000, Brian Shiro wrote:
>> GeoRSS gurus:
>> 2) Is there any generic tag I could use to denote the earthquake
>> magnitude?  Perhaps I could use the <georss:radius> tag, although its
>
>> purpose isn't really clear to me.
>
> This sounds like a case where you really want to extend RSS in a way
> that is unrelated to its 'geo' nature: you want  
> 'earthquake:magnitude',
> not a term in the GeoRSS namespace. Although it might be possible to
> co-opt the :radius tag, that's probably the wrong way to go.
>
> Regards,
> -- 
> Christopher Schmidt
> Web Developer
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