Maidment & Tarboton: The CUAHSI Hydrologic Information System enables water data to be delivered through the internet in a common language called WaterML, which describes time series of observations measured at a point locations for quantities such as streamflow, water quality, climate and groundwater conditions. Collections of water observations data from a variety of sources are stored in the CUAHSI Observations Data Model and published in WaterML as CUAHSI water data web services. Comparable CUAHSI water data services in WaterML from national water data agencies such as the USGS, are provided through customized interfaces to agency databases. This seminar presents two models for building state and regional hydrologic information systems.
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