HR: 08:00h
AN: IN31A-01 INVITED     [Abstracts]
TI: Collaboration to develop Cyberinfrastructure for Hydrologic Sciences
AU: * Valentine, D W
EM: valentin@sdsc.edu
AF: Univ of California, San Diego and San Diego Supercomputer Center, San Diego Supercomputer Center 9500 Gilman Drive #0505, La Jolla, CA 92093-0505, United States
AU: Zaslavsky, I
EM: zaslavsk@sdsc.edu
AF: Univ of California, San Diego and San Diego Supercomputer Center, San Diego Supercomputer Center 9500 Gilman Drive #0505, La Jolla, CA 92093-0505, United States
AB: For the past 3 years, Consortium for Universities for the Advancement of Hydrologic Science, Inc (CUAHSI) has been collaborating with several research universities, and San Diego Supercomputer Center as the technology partner, on developing a cyberinfrastructure for the Hydrologic Sciences, or Hydrologic Information System (HIS). The CUAHSI HIS team has been researching, prototyping, and implementing web services for discovering and accessing a variety of hydrologic data sources, and developing applications for the desktop and for the Web. Several products have been developed: a uniform set of web services for hydrologic data retrieval (WaterOneFlow web services); an information model and database schema for storing hydrologic observations, called the observations data model (ODM); instructions and/or extensions to common desktop applications such as Microsoft Excel and MATLAB for accessing distributed hydrologic data. In collaboration with ESRI, we have developed a Hydrologic Data Access System, a web-accessible map interface to WaterOneFlow web services. The web services have been demonstrated to work within the a modeling framework such as the Open Modeling Interface (OpenMI), as well as within several programming environments, in both Java and .NET. This experience highlighted important compatibility and interoperability issues surrounding the use of web services across languages, computing platforms, and web service toolkits. An important outcome of HIS research and development is the abstract specification of the WaterOneFlow web services. Using this definition, we can present different internet accessible data repositories (USGS NWIS, EPA STORET, DAYMET, NCDC ASOS, etc), as well as local databases following the ODM shema, in a uniform way. This approach simplifies programmatic retrieval and integration of hydrologic data. . Presently, we are focusing on combining the developed tools into a distributable HIS software package which will be implemented at 11 hydrologic observatory testbeds as part of an NSF WATERS initiative. This will let us test the HIS tools on diverse hydrologic datasets collected by the testbeds and help further develop the Cyberinfrastructure for Hydrologic Sciences.
UR: http:www.cuahsi.org/his/
DE: 0525 Data management
DE: 1819 Geographic Information Systems (GIS)
DE: 1899 General or miscellaneous
SC: Earth and Space Science Informatics [IN]
MN: 2007 Joint Assembly