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Ship’s Metadata & WMO-No. 47

Ship’s Metadata & WMO-No. 47. PMO-III, 23-24 March 2006, Hamburg, Germany. Graeme Ball VOS Program Manager, Australia Chairman, Ship Observations Team. Outline. The need for ship’s metadata. Operational Needs for WMO-No. 47 (Pub47). Requirements of Pub47. Planned changes to Pub47.

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Ship’s Metadata & WMO-No. 47

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  1. Ship’s Metadata & WMO-No. 47 PMO-III, 23-24 March 2006, Hamburg, Germany. Graeme Ball VOS Program Manager, Australia Chairman, Ship Observations Team

  2. Outline • The need for ship’s metadata. • Operational Needs for WMO-No. 47 (Pub47). • Requirements of Pub47. • Planned changes to Pub47. • Introduction of new Pub47.

  3. The Need for Ship’s Metadata • Assessing the quality of observed data: • Equipment types & exposure; • Methods of observations; and • Frequency of inspections & instrument performance checks. • Used in climate change investigations. • Used in research: • Modeling the wind flow over ships; • Comparing sensor types; and • Comparing instrument models and manufacturers.

  4. Operational Needs for Pub47 • Basis of a new monitoring report produced by UKMO. • Assists in determining the status of foreign ships. • Assists PMOs preparing to visit a foreign VOS ship. • Identifies potential ships: • For VOS Recruitment; • To participate in SOOP or ASAP; and • To deploy drifting buoys or profiling floats.

  5. Pub47 Requirements • What ? • Metadata for the entire national VOS fleet; and • List of nationally defined shipping routes. • When ? • Quarterly, ideally at the end of March, June, Sept & Dec. • How ? • Comma delimited files in the 2002 format (ver. 2); and • By email to pub47@wmo.int .

  6. Planned Changes to Pub47 • Task Team on WMO-No 47, established at SOT-II (London, July 2003). • 22 page proposal to ETMC-I (Gdynia, July 2004). • Recommendations and comments from ETMC-I presented at SOT-III (Brest, March 2005). • Final proposal from SOT-III to JCOMM-II (Halifax, September 2005).

  7. ETMC-I Final Report • …. that mobile units, at least on a temporary basis shall be reported in Pub47. • …. fixed platforms should be subject to ODAS metadata requirements. • Basically supported all of the recommendations from the Task Team on WMO-No. 47.

  8. JCOMM-II Final Report • Noted with approval the changes developed and implemented by the SOT ……. to the contents of the existing code tables associated with WMO-No. 47. • ….. to implement modifications to the definitions and details of the fields (and format) of WMO-No. 47, and to initiate preparation …. of a version of …. XML for the future exchange of the metadata for WMO-No. 47.

  9. JCOMM-II Final Report • Noted with approval the adoption …. of a semi-colon delimited format for the immediate current exchange of the metadata for WMO-No. 47. • …. SOT would be the subsidiary body of JCOMM responsible for the future maintenance of WMO-No. 47, in consultation as appropriate ….

  10. Changes to Existing Tables

  11. Changed Field Definitions

  12. New & Deleted Fields

  13. New Fields New semi-colon delimited format

  14. Improved Documentation

  15. Vessel Layout Diagram

  16. eXtensible Markup Language • XML is a text-based format, from the same family that includes HTML. • Widely used to transfer data, particularly metadata, via the internet. • The semi-colon delimited Pub47 file exchange will be retained until XML exchange is used exclusively by all VOS operators.

  17. Benefits of XML • Standard method of data exchange over the internet. • User-defined structure, flexible. • Data assembled logically in hierarchical groups. • Self-describing, readable in a web browser. • Sample XML file.

  18. Introduction of New Pub47 • Task Team on WMO-No. 47 to propose a consolidated list of shipping routes at SOT-IV (Rome, April 2007). • New version (Ver. 3) to be effective from 1 July 2007: • Database structure at WMO; • Semi-colon delimited file exchange; and • XML file exchange. • Presentation of Pub47 metadata on WMO website: • TBA by WMO.

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