1. 10 th GHRSST Science Team Meeting Santa Rosa, CA 3 June 2009

2. The XML (Metadata)TAG Chair: Ed Armstrong Members: Jean-F Piolle, Ken Casey, Leon Majewski, Dave Poulter Advisors: Ted Habermann (NOAA NGDC), Etienne Charpentier (WMO) GHRSST-9 AI: Develop an appropriate ISO-19115 based metadata model/profile for GDS 2.0 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA

3. Why... ? Current model based on NASA DIF has limitations: Data Provenance and Quality information L2 orbit characterization Other “clunky” stuff (addresses, liability statements, custom attributes) Limitations apparent even when mapped to FGDC model in GHRSST archive Maintain parity with other programs adopting ISO metadata model WMO Future Sentinel missions NOAA 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA

4. Use cases L4 products Which are the exact buoys used in the assimilation?….currently there is no (easy) way to get at this information. L2P products What is the longitude (and time) of the ascending node? What is the swath, period and inclination? We need this information for the an orbital modeling program. L3P products What polar projection is this data in ? 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA

5. The ISO components ISO 19115 (2003) Geographical information and associated services, data quality, access, contacts, and rights to use Over 400 metadata elements (attributes) 150 pages ISO 19115-2 (2009) Extended to describe imagery and gridded data > 100 attributes > 50 pages ISO 19130 (draft spec) Extensions for sensor model descriptions > 300 attributes > 160 pages 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA

6. The ISO components ISO components (superclasses, subclasses, containers, cointainees) Relationships diagrammed in UML 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA

7. The ISO Metadata Model Crosswalk between FR/DSD DIF model to ISO 19115 (Excel spreadsheet) – completed and posted to GHRSST Project web site 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA

8. The ISO Metadata Model UML diagrams for ISO core and crosswalked attributes – completed and posted to GHRSST Project web site UML further refined for sensor model attributes 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA

9. 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA UML 1

10. 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA UML 2

11. 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA UML 3

12. 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA MODIS L2P example

13. 3 June 200910 th GHRSST Science Team Meeting, Santa Rosa, CA Summary An ISO Metadata Model has been developed Needs refinement based on producer and user requirements It will resolve limitations with the existing model but is a more complex and rich metadata Is this what the science team wants ? Producers will be required to master the vast volume of ISO attributes, documentation Validation of XML records WMO wants to do metadata compatibility test XML TAG Has taken this about as far as we can go... Provided the blueprints