Unraveling the Web Services Web: An Introduction to SOAP, WSDL, and UDDI
IEEE Internet Computing
A distributed geospatial infrastructure for Sensor Web
Computers & Geosciences
Environmental Modelling & Software
An integrated system for publishing environmental observations data
Environmental Modelling & Software
Design of an image analysis website for phenological and meteorological monitoring
Environmental Modelling & Software
Software, Data and Modelling News: METEX - A flexible tool for air trajectory calculation
Environmental Modelling & Software
Environmental Modelling & Software
Environmental Modelling & Software
A software library for quantifying regional-scale nitrogen transport within river basin systems
Environmental Modelling & Software
System entity structure for XML meta data modeling: application to the logistics
SpringSim '10 Proceedings of the 2010 Spring Simulation Multiconference
EGOVIS'10 Proceedings of the First international conference on Electronic government and the information systems perspective
Components of an environmental observatory information system
Computers & Geosciences
Modeling water resource systems using a service-oriented computing paradigm
Environmental Modelling & Software
Service-oriented paradigm for analyzing hydrological processes
Proceedings of the 27th Annual ACM Symposium on Applied Computing
Environmental Modelling & Software
Integrated modeling within a Hydrologic Information System: An OpenMI based approach
Environmental Modelling & Software
Integrated environmental modeling: A vision and roadmap for the future
Environmental Modelling & Software
Spatial model steering, an exploratory approach to uncertainty awareness in land use allocation
Environmental Modelling & Software
Hydrologic information server for benchmark precipitation dataset
Computers & Geosciences
Experiences of using a hybrid cloud to construct an environmental virtual observatory
Proceedings of the 3rd International Workshop on Cloud Data and Platforms
Environmental Modelling & Software
Environmental Modelling & Software
Essential Terrestrial Variable data workflows for distributed water resources modeling
Environmental Modelling & Software
Managing a community shared vocabulary for hydrologic observations
Environmental Modelling & Software
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A wealth of freely available hydrologic data are provided by governmental organizations including in situ observations, geospatial data sets, remote sensing products, and simulation model output. Despite having access to this information, much of the data remain underutilized in the hydrologic sciences due in part to the time required to access, obtain, and integrate data from different sources. Web services offer a means for sharing hydrologic data more openly by providing a standard protocol for machine-to-machine communication. We have used this new technology to create a machine accessible interface for the National Water Information System (NWIS), an online repository of historical and real-time streamflow, water-quality, and ground water level observations maintained by the United States Geological Survey (USGS). These services provide a middle-layer of abstraction between the NWIS database and hydrologic analysis systems, allowing such analysis systems to proxy the NWIS server for on-demand data access. We intentionally designed the services to be generic and applicable to other hydrologic databases, in order to provide interoperability between disparate data sources. Performance tests showed that, for time series with less than 1000 observations, the web services layer added minimal overhead in terms of data response time, and development of an example client application for time series visualization highlighted some of the benefits and costs of using web services for data access.