presented february 21, 2006 at noaa rss, podcast/vodcast, blog workshop by eliot christian, united...

Presented February 21, 2006 at NOAA RSS, Podcast/Vodcast, Blog Workshop

by Eliot Christian, United States Geological Survey

Using RSS for Public Warnings

February 21, 2006 NOAA RSS, Podcast/Vodcast, Blog Workshop 2

The Challenge of Public Warning

Common Alerting Protocol (CAP)and Really Simple Syndication

(RSS)

CAP + RSS Examples at USGS

Geospatial Coordinates in RSS

Using RSS for Public Warning


Collaborative actions are necessary to assure that standards-based, all-media, all-hazards public warning becomes an essential infrastructure component available to all societies worldwide.

http://www.isoc.org/challenge






All-media: All available communications media (from broadcast down to individual targeting) are needed to get timely and appropriate warnings to everyone who needs them, and to only those who need them

All-hazards: Public warning systems should be in routine use for all hazards, not only for rare events such as earthquakes and tsunami, but for severe weather, fire, and other threats.


Goal and Requirements




(RSS)





Alert Sender

filtering and routing processes

Target Audience

Common Alerting Protocol

CAPmessage

CAPmessage


!

Alert Sender


Filtering and Routing Processes

!

Target Audience

sending processes

receiving processes

filtering and routing processes

Filtering and Routing Process Examples:

• Filtering of warning messages• Routing of warning messages per communications model• Conversion, translation, formatting per specific target device (network routers, PCs, PDAs, telephones, televisions, highway signs, sirens, etc)



CAP Filtering and Routing Criteria

Date/Time Geographic Area

(polygon, circle, geographic codes) Status

(Actual, Exercise, System, Test) Scope

(Public, Restricted, Private) Type

(Alert, Update, Cancel, Ack, Error)



CAP Filtering and Routing Criteria

Event Categories (Geo, Met, Safety, Security, Rescue, Fire, Health, Env, Transport, Infra, Other)

Urgency: Timeframe for responsive action (Immediate, Expected, Future, Past, Unknown)

Severity: Level of threat to life or property (Extreme, Severe, Moderate, Minor, Unknown)

Certainty: Probability of occurrence (Very Likely, Likely, Possible, Unlikely, Unknown)


Why Really Simple Syndication (RSS)?

Target recipients of messages may not have continuous communications connectivity

News readers allow the user to set the refresh interval differently for each RSS news feed

Messages for weather, earthquakes, etc. are being offered as an RSS (Really Simple Syndication) news feed


Combining CAP with RSS

The CAP standard specifies that each message has a unique identifier, date/time stamp, and short human-readable descriptor ("headline")

To support geospatial visualization, it is important to place WGS-84 coordinates (especially point and polygon) directly in the RSS feed, at RSS channel/item level

For internationalization, item "title" value should be a concatenation of fixed CAP values




(RSS)




http://earthquake.usgs.gov/eqcenter/recenteqsww/catalogs/

RSS for USGS Earthquake Data

RSS and CAP Feeds from USGS


Use of RSS in USGS

USGS public website offers several RSS feeds:Recent Earthquakes (w/ CAP)Latest USGS News ReleasesLatest Landslide Hazard Alerts (w/ CAP)Latest Volcano Hazard Alerts

(w/ CAP)National Cooperative Geologic Mapping Program NewsGeography – What’s New




(RSS)




GEORSS: Specifying Placehttp://www.georss.org/

GEORSS: Specifying Place<georss:line> Note: axis order is latitude, longitude

<georss:polygon> Note: Closed, anti-clockwise

<georss:box> Note: South, West, East, North

presented february 21, 2006 at noaa rss, podcast/vodcast, blog workshop by eliot christian, united...

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