1. Copyright © 2009, Open Geospatial Consortium, Inc. Hydrology DWG 69th OGC Technical Committee Boston, MA, USA Ilya Zaslavsky, David Lemon June 22, 2009 Sponsoredby

2. Helping the World to Communicate Geographically Copyright © 2009 Open Geospatial Consortium Agenda 1. Introduction and elections of DWG co-chairs (10 min) 2. Presentations (talk titles are tentative, 15-20min each): a. Nathaniel Booth: "USGS Water Data Exchange Services" b. Zichuan Ye, Dean Djokic (ESRI) "What is needed to support an integrated geo-temporal system based on CUAHSI experience" c. Boyan Brodaric (Geoconnections - Geological Survey of Canada) "Geospatial Information Interoperability in the Canadian Groundwater Information Network". d. David Lemon, Peter Fitch (CSIRO): "The Hydrologists Workbench - an application of scientific workflows to hydrology problems" e. David Valentine, Ilya Zaslavsky (SDSC and CUAHSI HIS) "Time series management in WaterML 1.1 and CUAHSI Water Data Services" 3. Discussion of the DWG mission and first steps (Charter: document 08-095r4)

3. Helping the World to Communicate Geographically Copyright © 2009 Open Geospatial Consortium DWG Charter and Mission The purpose of the Hydrology DWG is to provide a venue and mechanism for seeking technical and institutional solutions to the challenge of describing and exchanging data describing the state and location of water resources, both above and below the ground surface. The problem is two-fold. –Firstly, a consistent set of formalisms that reflect core hydrologic notions (e.g. watersheds, estuaries, river channels, different types of measurement points), common types of hydrologic sampling features (e.g. transects, vertical profiles), typical ways of organizing hydrologic data (e.g. time series), and canonical usage scenarios for hydrologic data are needed. –Secondly, such formalisms need to be expressed using general and consistent notation to ensure that hydrologic data are unambiguously interpreted and interoperable with data from related disciplines. Specialize work in ESS, and contribute to OGC methodology

4. Helping the World to Communicate Geographically Copyright © 2009 Open Geospatial Consortium Looking forward Public mailing list (https://lists.opengeospatial.org/mailman/listinfo/hydro.dwg ) and Twiki created: bringing in government, industry, research groupshttps://lists.opengeospatial.org/mailman/listinfo/hydro.dwg Motions, and expectations for September TC: –For the next TC: standards in WISE and other European initiative? update from WMO, and WMO-nominated co-chair –Activities: Explore hydro interoperability experiment Discussion papers and Best practice documents? Coordination with other OGC groups (Meteo, ESS, Oceans IE,..) Evening get together? –Motions OGC Co-chairs?

5. Helping the World to Communicate Geographically Copyright © 2009 Open Geospatial Consortium Copyright © 2008, Open Geospatial Consortium, Inc., All Rights Reserved. Motions Sample Motion: The recommends that the OGC Technical Committee approve release of “ ” as an OGC Document –Pending and final edits and review by OGC staff – –Motion: –Second: –If there is a hand vote, the results of the vote. Otherwise, the phrase should be used