1. The ISO Registry of Geodetic Codes & Parameters ISO/TC 211 … building the foundation of the geospatial infrastructure, brick by brick... REFAG2014, Luxembourg, October 13-17, 2014 Michael Craymer Canadian Geodetic Survey Larry Hothem US Geological Survey

2. ISO/TC 211 Geographic Information/Geomatics ISO Standards for geographic information & geomatics; e.g.ISO Standards for geographic information & geomatics; e.g. –Spatial referencing by coordinates (IS 19111) –Procedures for item registration (IS 19135) –Geodetic codes & parameters (TS 19127) Responsible for the ISO Geodetic Registry NetworkResponsible for the ISO Geodetic Registry Network –Register: A database of geodetic reference systems –Registry: An information system providing a register

3. Why an ISO Geodetic Registry EPSG – a widely used registryEPSG – a widely used registry Not sure if entirely compliant with IS 19135Not sure if entirely compliant with IS 19135 Content not always validated by authoritative sourcesContent not always validated by authoritative sources DGIWG Registry (Defence Geospatial Information Working Group)DGIWG Registry (Defence Geospatial Information Working Group) ISO-compliant but not publically available (military)ISO-compliant but not publically available (military) Plan to transition to the ISO Geodetic RegistryPlan to transition to the ISO Geodetic Registry German SDI RegistryGerman SDI Registry ISO-compliant but not international in scopeISO-compliant but not international in scope Need an ISO registry of international scope and validated by authoritative sourcesNeed an ISO registry of international scope and validated by authoritative sources

4. ISO Geodetic Registry Network Three components:Three components: –Register of ISO-approved geodetic registries/registers –ISO geodetic registry –ISO-approved external registers Control Body (CB)Control Body (CB) –Approves content of ISO register & ISO-compliant parts of external registers

5. Control Body Membership Permanent MembersExternal Liaisons Australia (pending) IAG (Chair & Vice-Chair) CanadaDGIWG ChinaFIG FranceIHO FinlandGermanyItalyJapan Republic of Korea (pending)Current Chair: Michael Craymer Saudi ArabiaCurrent Vice-Chair: Larry Hothem South Africa United Kingdom United States

6. ISO Geodetic Registry Register OwnerRegister Owner –ISO/TC 211 Register ManagerRegister Manager –ISO/TC 211 Secretariat Registry Software & ServerRegistry Software & Server –Hosted by Norwegian Mapping Authority –Control Body facilitated search for registry software

7. ISO Geodetic Registry Software Software FeaturesSoftware Features –New open source software developed by René Thiele (Frankfurt University of Applied Sciences) –Funded by BKG & Norwegian Mapping Authority –Compliant with ISO standards and specs Data model based on IS 19111Data model based on IS 19111 Rules for population & maintenance – TS 19127Rules for population & maintenance – TS 19127 Registration procedures – IS 19135Registration procedures – IS 19135 –Includes management process & publication of content –Web interface & web services (REST & SOAP) Development version being testedDevelopment version being tested

8. IS 19111 Data Model Coordinate Reference Systems Coordinate Operations Datums Coordinate Systems Supporting Items

9. Data Model Example Coordinate Reference System (e.g. ITRS) Datum (Ref. Frame) (e.g. ITRF2008) Coordinate System (e.g. 3D geocentric Cartesian)

10. Transformation Data Model

11. Registry Management ProcessProcess –Submission of a proposal –Approval/Rejection –Withdrawal –Appeal of a rejection Types of submissionsTypes of submissions –Addition –Clarification –Supersession (update) –Retirement –Invalidation (of erroneous information)

12. Management Roles Register Owner (ISO/TC 211) Organization that establishes a register Register Manager (ISO/TC 211 Secretariat) Organization that manages the content of a register – mostly handled by registry software Control BodyGroup of technical experts that makes decisions regarding the content of a register Submitting Org.Organization authorized by a register owner to propose additions/changes to the content of a register

13. Submission Submitting OrganisationRegister Manager

14. Approval Submitting Organisation Register ManagerControl Body

16. Geodetic Codes & Parameters Coordinate Reference Systems Coordinate Systems Datums Coordinate Operations Other Area of Use Coordinate System Axis Ellipsoid Naming System Operation Method Operation Parameter Prime Meridian Unit of Measure

18. Present Status Control Body RepresentationControl Body Representation –Seeking representation from all regions –Missing: South America, Russia, India ISO Geodetic Registry ImplementationISO Geodetic Registry Implementation –Data being loaded for testing –Demonstrations at ISO TC 211 & monthly CB meetings –“Seeding” registry with primary global & continental reference frames for public release, including ITRFGTRF09v01ETRFAFREF WGS84JGS (QZSS)NAD83APREF PZ-90.02CTRS 2000SIRGASGDA94 (Beidou)

19. Future Plans (1/2) Revision of standards (IS 19111 & TS 19127)Revision of standards (IS 19111 & TS 19127) –Present versions Data model based on horizontal reference systems and levelling-based vertical datumsData model based on horizontal reference systems and levelling-based vertical datums Geoids treated only as transformations between geodetic & orthometric heightsGeoids treated only as transformations between geodetic & orthometric heights Only one datum (frame) per CRSOnly one datum (frame) per CRS Only one coordinate system per CRSOnly one coordinate system per CRS Only one UTM zone per coordinate systemOnly one UTM zone per coordinate system –Revision needed for Modern dynamic 3D reference systemsModern dynamic 3D reference systems Geoid-based vertical datumsGeoid-based vertical datums

20. Future Plans (2/2) Registry ImplementationRegistry Implementation –Adapt modern reference systems to current data model (make extensive use of “comments” in item descriptions) –Complete loading of registry with an initial set of international reference systems & transformations –Planning public release by end of year Will post link to ISO Registry on IAG Website

21. Thank you for your attention