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Texas Water Information and Digital Libraries

Texas Water Information and Digital Libraries

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Texas Water Information and Digital Libraries

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  1. Texas Water Information and Digital Libraries David R. Maidment Director, Center for Research in Water Resources University of Texas at Austin

  2. Water Problems in Texas Flooding Water Quality Drought Environmental health

  3. Texas Water Information and Digital Libraries • Digital Water Information from CRWR • WaterML – internet water data services • Semantic web for water data • How can we move forward together?

  4. Texas Water Information and Digital Libraries • Digital Water Information from CRWR • WaterML – internet water data services • Semantic web for water data • How can we move forward together?

  5. Digital Archiving of Theses, Dissertations and Reports since 1994 at CRWR

  6. CRWR Water Information Services A digital archive that supports Senate Bill 3: Environmental Flows for Texas

  7. Texas Natural Resources Information System (TNRIS)

  8. http://www.waterdatafortexas.org Water Data Sites

  9. Texas Water Information and Digital Libraries • Digital Water Information from CRWR • WaterML – internet water data services • Semantic web for water data • How can we move forward together?

  10. Consortium of Universities for the Advancement of Hydrologic Science, Inc (CUAHSI) 118 Universities in North America (and 3 in Europe) NSF supports building a Hydrologic Information System (HIS)

  11. Water Observations Data Water quantity Soil water Rainfall Water quality Groundwater Meteorology

  12. Data are Published in Many Formats

  13. Services-Oriented Architecture A services‐oriented architecture is a concept that applies to large, distributed information systems that have many owners, are complex and heterogeneous, and have considerable legacies from the way their various components have developed in the past (Josuttis, 2007).

  14. Web pages Web services We are at a tipping point… Internet Internet Internet WaterML People interact with a remote information server People interact with a network of Information services

  15. HTML as a Web Language Text and Pictures in Web Browser HyperText Markup Language <head> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <title>Vermont EPSCoR</title> <link rel="stylesheet" href="epscor.css" type="text/css" media="all" /> <!-- <script type='text/javascript' language='javascript‘ src='Presets.inc.php'>--> </head>

  16. Point Water Observations Time Series A point location in space A series of values in time

  17. WaterML as a Web Language Discharge of the San Marcos River at Luling, TX June 28 - July 18, 2002 Streamflow data in WaterML language

  18. CUAHSI Water Data Services 35 services 15,000 variables 1.75 million sites 8.33 million series 342 million data

  19. Synthesis and communication of the nation’s water data http://his.cuahsi.org Federal Water Data Academic Water Data State and Local Water Data To make a complete picture of water data, we need to be able to add state and local data to national and academic data sources. Regional Water Data Systems

  20. 11 services 4,816 variables 15,645 sites 645,565 series 23,272,357 records

  21. Texas Water Information and Digital Libraries • Digital Water Information from CRWR • WaterML – internet water data services • Semantic web for water data • How can we move forward together?

  22. request return return request NAWQA request return return request NAM-12 request return NWIS request return request return return request NARR Data Searching • Search multiple heterogeneous data sources simultaneously regardless of semantic or structural differences between them Searching each data source separately Michael Piasecki Drexel University

  23. NAWQA NWIS NARR HODM Semantic Mediation Searching all data sources collectively GetValues GetValues GetValues GetValues generic request GetValues GetValues Michael Piasecki Drexel University GetValues GetValues

  24. Thematic Concepts Kate Marney, CRWR Core Concept Property Branch Leaf Variables

  25. http://test.hydroseek.net/ontology/Ontology.html

  26. A Theme Layer Synthesis over all data sources of observations of a particular variable e.g. Salinity

  27. Texas Salinity Theme 7900 series 347,000 data 7900 series TPWD 3400 TCEQ 3350 TWDB 150

  28. Copano and Aransas Bay Salinity Number of Data 0 – 50 50 – 150 150 – 400 400 – 1000 1000 – 3000 Copano Bay Aransas Bay

  29. Texas Daily Streamflow Theme USGS Data 1138 sites (400 active)

  30. Austin – Travis Lakes Streamflow Years of Data 0 – 10 10 – 20 20 – 40 40 – 60 60 – 110

  31. Texas Water Temperature Theme 22,700 series 966,000 data

  32. Texas Water Information and Digital Libraries • Digital Water Information from CRWR • WaterML – internet water data services • Semantic web for water data • How can we move forward together?

  33. Texas Digital Library Members Many of these universities also have a Water Research Center

  34. Senate Bill 3: Environmental Flows Senate Bill 3 passed by the 2007 Texas Legislature Provides for “Environmental Flows” in Texas Rivers and Bays

  35. Basin and Bay Committees

  36. CRWR Water Information Services A digital archive that supports Senate Bill 3: Environmental Flows for Texas

  37. Senate Bill 3 Information Needs Hydrology Water Quality Government Information Geomorphology Aquatic Biology Academic Information

  38. Conclusions • I think Texas Digital Library is great! • We need to understand better how to integrate digital objects with water data • How to connect TDL and TNRIS? • Is environmental flows a good focus?