Data Access System for Hydrology (DASH)

DASH is a map-based ArcGIS Server application, that enables you to query a network of hydrologic observation sites and extract hydrologic observation data from them in the form of time series of measurements at individual sites or collections of them. Each DASH installation can have access to multiple observation networks.

DASH has been deployed at CUAHSI-HIS Central hosted at SDSC, at WATERS Network test bed sites around the country, and by other users of the full HIS Server package. Regional HIS Servers provide data from state, local or academic investigator observation data sources in particular areas. DASH was developed as part of a joint effort between the CUAHSI-HIS and the ESRI Water Resources Applications group in Redlands, CA.

• Accessing DASH:
  • The HIS Central DASH, provides access to:
    • USGS National Water Information System (NWIS) Daily Values
    • USGS National Water Information System (NWIS) Instantaneous Irregular Data (IID)
    • EPA Storage and Retrieval System (Storet)
    • SNOTEL
  • WATERS Network DASH Servers
  • DASH is usually located at the address: http://serveraddress/dash/ on a standard HIS Server.
• How to use DASH: Using the HIS Server Interface DASH — A manual for the user on using DASH to discover and download data [PDF; 556KB; 16 pages]
• DASH Source Code [ZIP; 3M]
• Adding an Observation Network to DASH — A manual for the server’s data manager on the configuration of DASH [PDF; 1.8MB; 26 pages]