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XML draft format for warnings and advisories in Japan. 9 Dec 20008 Yuichi YAMAKOSHI Planning Division, JMA. Background - Latest activities and information systems in Japan . Improvement of services Earthquake Early Warning System Very detailed warnings for individual municipalities
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XML draft formatfor warnings and advisoriesin Japan 9 Dec 20008 Yuichi YAMAKOSHI Planning Division, JMA
Background - Latest activities and information systems in Japan • Improvement of services • Earthquake Early Warning System • Very detailed warnings for individual municipalities • Rapid progress in information and communications technology • Roles of various media and the use of their characteristics
JMA’s ongoing project to develop XML format for warnings and advisories • Project goals • Format conversion: from various forms of conventional text to a unified and comprehensive format • Uniform format: for information on various natural disasters from observations to forecasts • Flexible format: computer-processable form allowing the addition of new elements for future services • Availability to users: a generally accepted system is cost-effective in the long run • Project collaborators • Technical support from the XML Consortium on XML standardization • Coordination with governmental organizations and the mass media
Already-operational CAP: Is CAP applicable to JMA’s project? • Comparison of JMA’s project and CAP • Purpose: Distribution of disaster prevention information • Target: All natural hazards (other than human-induced accidents) • Content: User requirements for information; compartmentalization and quantification • possible by JMA with CAP • The essence of JMA’s warnings is expressible with CAP; torrential rain, flooding, storm surges, earthquakes and volcanic eruptions • Very detailed observations and forecasts cannot be expressed with CAP; quantitative estimates and time-sequential values
Comparison of JMA’s project and CAP All Hazards CAP law enforcement natural hazards such as severe weather, earthquakes, and tsunami public safety detail quantitative estimates time-sequential values JMA’s project
About JMA’s XML format for warnings and advisories - Part I .XSD .XLS • Characteristics and key points of JMA’s XML format • A data dictionary derived by analysis and restructuring of conventional information elements • Automatic development of an XML schema from the data dictionary • Structure of JMA’s XML format • Three elements: control part, head part (similar to CAP) and body part (quantitative expression part for each area of meteorology, seismology, volcanology) • Reusable basic elements in every part: atmospheric temperature, pressure, magnitude, etc. • Extensibility; allows new elements to be added in the future data dic. XML schema <Control> -Title -Datetime - … Basic elements <Pressure>,<WindSpeed>, <Magunitude>,<Tsunami>, … <Head> -Headline -TargetArea - … Ref. <Body> *meteorology *seismology *volcanology
About JMA’s XML format for warnings and advisories - Part II .XSD [jmx1] .XML (v.1.2) .XML (v.1.0) .XML .XML (v.2.0) .XSD [jmx2] .XSD <element name=“Pressure” type=“float”> • Issues discussed in development • Data type for physical values in basic elements: float type (not string type)How can invalid values and missing data be described in XML? • Management of XML schema: name spacing and version numberHow can forward and backward compatibility between schema and instance be maintained? • Applications of JMA’s XML format • Computer-processable structure:Various values can be stored from plain text to code values, i.e., binary data • Processable with user applicationse.g., Prefectures: outlook for the entire area Municipalities: detailed analysis in individual areas .XML <Pressure /> ? ? Detail
In the future • Consider specific applications for CAP in Japan • Easy creation of XML code in CAP format from JMA’s data dictionary • Data dictionary will be a big asset to JMA’s introduction of XML Thank you Merci