HR: 10:32h
AN: IN52A-02    [Abstracts]
TI: Building Community Around Hydrologic Data Models Within CUAHSI
AU: * Maidment, D
EM: maidment@mail.utexas.edu
AF: Center for Research in Water Resources, University of Texas at Austin, Austin, Tx 78712, United States
AB: The Consortium of Universities for the Advancement of Hydrologic Science, Inc (CUAHSI) has a Hydrologic Information Systems project which aims to provide better data access and capacity for data synthesis for the nation's water information, both that collected by academic investigators and that collected by water agencies. These data include observations of streamflow, water quality, groundwater levels, weather and climate and aquatic biology. Each water agency or research investigator has a unique method of formatting their data (syntactic heterogeneity) and describing their variables (semantic heterogeneity). The result is a large agglomeration of data in many formats and descriptions whose full content is hard to interpret and analyze. CUAHSI is helping to resolve syntactic heterogeneity through the development of WaterML, a standard XML markup language for communicating water observations data through web services, and a standard relational database structure for archiving data called the Observations Data Model. Variables in these data archiving and communicating systems are indexed against a controlled vocabulary of descriptive terms to provide the capacity to synthesize common data types from disparate data sources.
UR: http://www.cuahsi.org/his.html
DE: 1848 Monitoring networks
DE: 1860 Streamflow
DE: 1871 Surface water quality
DE: 1872 Time series analysis (3270, 4277, 4475)
DE: 1879 Watershed
SC: Earth and Space Science Informatics [IN]
MN: 2007 Fall Meeting