[georss] GeoRSS for earthquake/tsunami reporting

[Brian Shiro]

Mikel,

I think <category> is probably not appropriate for this purpose, but  
I suppose it is a possibility.

The only examples of <georss:featuretypetag> that I can find use it  
to define cities.  Is there a full description of the GeoRSS objects  
that I can read to gain a better understanding of them?

Brian


On Dec 30, 2006, at 1:56 AM, Mikel Maron wrote:

> Scott Haefner at the USGS was developing the GeoRSS feeds at the  
> time. I can get you his details offlist.
>
> I'm not sure if it's wise or not, maybe just practical. I wouldn't  
> say DC is on the out necessarily, but it's
> definitely inprecise. In that vein, there's also RSS 2.0 <category>  
> and Atom <category>.
>
> In GeoRSS itself, it would seem that <georss:featuretypetag> might  
> be more appropriate than <georss:radius>.
>
>
> That's interesting, the TWML. Comprehensive, and a bit complex.  
> Perhaps some simplifications could
> rework it for use as an RSS/Atom namespace.
>
> ----- Original Message ----
> From: Brian Shiro <brian.shiro at noaa.gov>
> To: Mikel Maron <mikel_maron at yahoo.com>
> Cc: georss at lists.eogeo.org
> Sent: Saturday, December 30, 2006 11:43:00 AM
> Subject: Re: [georss] GeoRSS for earthquake/tsunami reporting
>
> Mikel,
>
> Thank you for the very interesting information.  I'll certainly use
> <georss:elev> with a negative value to indicate depth.
>
> I wish there were a more clear direction for indicating the magnitude
> with established namespaces.  It seems to me that the dc namespace is
> on the way out in RSS 2.0.  If this is true, do you think it's wise
> for me to follow the USGS's lead and use <dc:subject> as a proxy for
> magnitude?  Perhaps I'll get in touch with the USGS regarding their
> mysterious "eq" namespace.  Since I want valid feeds, I'll avoid the
> JRC approach of just creating my own fields directly in the RSS
> namespace.
>
> In a later incarnation of our RSS feeds, I certainly want to try
> having polygons of the tsunami travel times (similar to JRC and
> GDACS) and of the countries put into a watch or warning.
>
> FYI: There is an effort underway to create a Tsunami Warning Markup
> Language (TWML) to standardize some of this:
>       http://xml.coverpages.org/
> emergencyManagement.html#TsunamiWarningML
>
> Brian
>
>
> On Dec 30, 2006, at 1:19 AM, Mikel Maron wrote:
>
>> Hi Brian
>>
>>
>> There's been a bunch of forays for distributing earthquake, tsunami,
>>
>>
>> and other types of warnings in GeoRSS. Both the USGS and European
>>
>>
>> Commission have developed similar feeds and these might be good
>>
>>
>> guides.
>>
>> Overall I think that earthquake, tsunami and other disaster
>>
>> information is very much in need of an open, "simplest thing that
>> works",
>> RSS derived standard for distribution and aggregation.
>>
>>
>> For earthquake depth, I see no problem with a negative value in
>> <georss:elev>, and would recommend it.
>>
>>
>>  #2 has more variety, and no clear answer..
>>
>> http://earthquake.usgs.gov/eqcenter/recenteqsww/catalogs/
>>
>> These USGS feeds were actually some of the first GeoRSS feeds.
>> They use <dc:subject> to transport the magnitude.
>>
>> The newer "ShakeMaps" feed does reference an "eq" namespace,
>> but the URI is 404. Elements include "seconds", "depth", "region",
>> "shakethumb".
>>
>>
>> http://tsunami.jrc.it/
>> http://tsunami.jrc.it/model/Reports/9338/out_9338.xml
>>
>> The JRC tsunami model puts the "magnitude", "depth", and other
>> elements
>> directly within the RSS namespace, so it's invalid.
>>
>> What is very nice about their feeds, however, is that the feed for
>> each
>> warning contains a series of items, with polygons and timestamps
>> corresponding to the hour by hour prorogation of the simulated wave.
>> They use the old informal extension to the W3C "geo" namespace.
>> I'd suggest using georss:polygon for the similar purposes in NOAA
>> feeds.
>>
>>
>> http://www.gdacs.org/
>> http://www.gdacs.org/XML/RSS.xml
>>
>> GDACS is a cooperative effort between the UN and the European
>> Commission
>> to coordinate responses to natural disasters. They use GeoRSS, plus
>> a bunch
>> of closed, invented namespaces which correspond to different
>> components of the
>> system "gdas", "asgard", "glide".
>>
>> -Mikel
>>
>>
>> ----- Original Message ----
>> From: Brian Shiro <brian.shiro at noaa.gov>
>> To: georss at lists.eogeo.org
>> Sent: Saturday, December 30, 2006 9:42:04 AM
>> Subject: [georss] GeoRSS for earthquake/tsunami reporting
>>
>> GeoRSS gurus:
>>
>> I have created some RSS 2.0 feeds of tsunami bulletins from the
>> Pacific Tsunami Warning Center.  These include <georss:point> tags
>> with the earthquake location, but I'd like to also include earthquake
>> depth and magnitude as XML fields.
>>
>> 1) Could I use the <georss:elev> tag with negative elevation values
>> to denote depth?
>>
>> 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.
>>
>> I think GeoRSS's ability to define polygons and countries could
>> really enhance our tsunami warning products since we could define the
>> geographic areas pertinent to a given tsunami bulletin.  If anyone
>> has suggestions along these lines, I'd be interested in hearing them.
>>
>> Thank you,
>> Brian Shiro
>> NOAA Pacific Tsunami Warning Center
>>
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