HR: 1340h
AN: H13H-1685    [Abstracts]
TI: Data Access System for Hydrology
AU: * Whitenack, T
EM: whitenac@sdsc.edu
AF: San Diego Supercomputer Center, University of California, San Diego, La Jolla, CA 92093- 0505, United States
AU: Zaslavsky, I
EM: zaslavsk@sdsc.edu
AF: San Diego Supercomputer Center, University of California, San Diego, La Jolla, CA 92093- 0505, United States
AU: Valentine, D
EM: valentin@sdsc.edu
AF: San Diego Supercomputer Center, University of California, San Diego, La Jolla, CA 92093- 0505, United States
AU: Djokic, D
EM: ddjokic@esri.com
AF: ESRI, 380 New York St, Redlands, CA 92373, United States
AB: As part of the CUAHSI HIS (Consortium of Universities for the Advancement of Hydrologic Science, Inc., Hydrologic Information System), the CUAHSI HIS team has developed Data Access System for Hydrology or DASH. DASH is based on commercial off the shelf technology, which has been developed in conjunction with a commercial partner, ESRI. DASH is a web-based user interface, developed in ASP.NET developed using ESRI ArcGIS Server 9.2 that represents a mapping, querying and data retrieval interface over observation and GIS databases, and web services. This is the front end application for the CUAHSI Hydrologic Information System Server. The HIS Server is a software stack that organizes observation databases, geographic data layers, data importing and management tools, and online user interfaces such as the DASH application, into a flexible multi- tier application for serving both national-level and locally-maintained observation data. The user interface of the DASH web application allows online users to query observation networks by location and attributes, selecting stations in a user-specified area where a particular variable was measured during a given time interval. Once one or more stations and variables are selected, the user can retrieve and download the observation data for further off-line analysis. The DASH application is highly configurable. The mapping interface can be configured to display map services from multiple sources in multiple formats, including ArcGIS Server, ArcIMS, and WMS. The observation network data is configured in an XML file where you specify the network's web service location and its corresponding map layer. Upon initial deployment, two national level observation networks (USGS NWIS daily values and USGS NWIS Instantaneous values) are already pre-configured. There is also an optional login page which can be used to restrict access as well as providing a alternative to immediate downloads. For large request, users would be notified via email with a link to their data when it is ready.
UR: http://river.sdsc.edu/dash/
DE: 0525 Data management
DE: 1819 Geographic Information Systems (GIS)
DE: 6339 System design
SC: Hydrology [H]
MN: 2007 Fall Meeting