Sponsored by Instituto Geogrfico Nacional IGN of Spain

Sponsored by Instituto Geográfico Nacional (IGN of Spain) Hydrology DWG/ad hoc 67 th OGC Technical Committee Valencia, Spain Simon Cox December 4, 2008 Copyright © 2008, Open Geospatial Consortium, Inc. , All Rights Reserved.

Agenda • Report on WMO CHy meeting – David Arctur, OGC • Hydrology DWG Charter Discussion – Scope – Modifications to charter if required • A hydrology framework – an example of the challenge of managing dependencies in framework datasets – Rob Atkinson, CSIRO • Water. ML harmonization report – Simon Cox, CSIRO • GRDC Hydrologic metadata profile – Simon Cox, CSIRO (on behalf of Ulrich Looser, GRDC) • Other reports • Motion to TC to form Hydrology DWG Copyright © 2008, Open Geospatial Consortium, Inc. , All Rights Reserved. Helping the World to Communicate Geographically

Justification • OGC member interest • WMO-CHy interest (Bruce Stewart) – “Can you do this thing which we don’t seem to be able to do ourselves” – Help with methodology & continuity, process • Hydrology has strong X-Domain requirements • Clear relationship with other OGC activities – SWE – GALEON • Domain modelling exemplar • Help generate reference model/best practice for framework datasets • Can the OGC methodology develop a product which is adoptable by an international authority? • How is this all different to a conventional OGC DWG? • Coordination & community representation • Do we need a different kind of WG within OGC? Copyright © 2008, Open Geospatial Consortium, Inc. , All Rights Reserved. Helping the World to Communicate Geographically

Charter issues • Joint committee with CHy – Explicitly reserve co-chair for WMO CHy nominee • Visible linkage to WMO is evidence to the community that this activity has a plausible mandate – Co-branded specifications? • DWG – Charter to note that will make regular reports to ESS + tech working groups • Allow for participation of non-members of OGC • and/or an OGC Interoperability Experiment • (Side effect: Hydrology as an exemplar of a methodology which contributes to development of a SDI design and maintenance process) Copyright © 2008, Open Geospatial Consortium, Inc. , All Rights Reserved. Helping the World to Communicate Geographically

Other interested parties and initiatives • WISE Copyright © 2008, Open Geospatial Consortium, Inc. , All Rights Reserved. Helping the World to Communicate Geographically

Water. ML v 2 progress • Harmonization of CUAHSI Water. ML + O&M (etc) • CSIRO + CUAHSI (SDSC) have commenced work • Activity leads: – Peter Taylor (CSIRO) – David Valentine (SDSC) – + Simon Cox, Gavin Walker (CSIRO), Bora Beran (Microsoft) • Aiming at June 2009 for completed draft. Copyright © 2008, Open Geospatial Consortium, Inc. , All Rights Reserved. Helping the World to Communicate Geographically

Actions • Charter revision – David. A to tweak/revise charter (r 2) in view of today’s discussion – Josh + Clemens + Rob to comment on r 2 • Defer formal initiation of Hydrology WG to next TC • Initiate an IE – Mark. R suggesting … Copyright © 2008, Open Geospatial Consortium, Inc. , All Rights Reserved. Helping the World to Communicate Geographically

Motions • Sample Motion: • The <WG name> recommends that the OGC Technical Committee approve release of <OGC Document Number> “<OGC Document Name>” as an OGC <Discussion/Best Practices> Document – Pending and final edits and review by OGC staff – <Any Discussion Points that the TC needs to be aware of> – Motion: <Name of person making the motion> – Second: <name of the person seconding the motion> – If there is a hand vote, the results of the vote. Otherwise, the phrase <There was no objection to unanimous consent> should be used Copyright © 2008, Open Geospatial Consortium, Inc. , All Rights Reserved. Helping the World to Communicate Geographically