CUAHSI's Hydrologic Information System (CUAHSI-HIS) provides web services, tools, standards and procedures that enhance access to more and better data for hydrologic analysis.
The CUAHSI Hydrologic Information System (HIS) is an internet-based
system for sharing hydrologic data. It is comprised of databases and servers,
connected through web services, to client applications, allowing for for the
publication, discovery and access of data.
Key Components of CUAHSI-HIS:
There are three types of computers that store and process data:
HIS Central — contains copies of metadata which facilitates searches; works like a search engine, in that it harvests metadata from the data servers and allows it to be efficiently searched by the clients.
HydroServer — stores, organizes and publishes data; allows metadata to be harvested by HIS Central and data to be shared with clients.
Clients (such as HydroDesktop) — gives users a convenient interface to access data; retrieves metadata from HIS Central and retrieves data from HydroServers.
and three types of web-services that allow the computers to communicate via the internet:
Data Services — allows water and related spatial data to be retrieved by the client (such as HydroDesktop) computers.
Search Services — allows the client computers to perform searches of the search catalog at HIS Central.
Metadata Services — allows HIS Central to retrieve the metadata necessary to build the search catalog.
that make-up the core of CUAHSI-HIS.
What you can do with CUAHSI-HIS?
There are three main ways to interact with CUAHSI-HIS:
Data Users — search for data, retrieve data, organize data, analyze data and/or use data for modeling.
Data Publishers — organize data, store data, and make data available to others.
Tool and Technique Developers — create and share additional tools and techniques that are compatable with the CUAHSI-HIS system. While the CUAHSI-HIS team has developed many of the key tools and techniques for HIS, the team is only producing a few of the many possible pieces that could be incorporated into this system. This leaves open numerous opportunities for others, throughout the hydrologic community, to contribute to HIS, by developing additional tools and techniques.
What the CUAHSI-HIS team is doing for you?
The CUAHSI-HIS team has developed, and continues to make improvments to, a standards-based system for storing, managing, organizing, indexing, documenting and sharing data. In addition, it has developed, and is continuing to develop, tools and techniques for implementing many of the key pieces of this system. Finally, the team is providing on-going community support via numerous channels, including: forums/wikis, workshops, papers and presentations.
This survey follows on to those conducted in 2004 and 2006. Results of these surveys have had a significant influence on the direction of this project.
This workshop is an introduction to the CUAHSI HIS web service approach to sharing and accessing hydrologic data, including the key tools and technologies: HydroServer (store and publish), HIS Central (catalog and search), and HydroDesktop (access and analyze). The workshop follows the CUAHSI Biennial Colloquium in Bolder, CO.
The keynote by ESRI’s Jack Dangermond described how ESRI is integrating HIS technology into their new products. There was also a number of other HIS related presentations, and we had demos and more at the CUAHSI booth at the conference on, March 29-31, 2008, and the workshops that followed it on April 1-2, in Orlando, FL.
HydroDesktop, CUAHSI HIS' new map-based client application for discovery, access and analysis of hydrologic data is ready for your review. We are looking for members of the community to help us test it and provide feedback. We encourage you to go to the HydroDesktop website, download the software and give it a workout. Let us know your thoughts about it using our feedback page. For more information, see the HydroDesktop page on this site.
The CUAHSI HIS Team has produced a 2009 Status Report that details the expansions and updates to the HIS System that have occured since the Version 1.1 Overview Report was released on July 12, 2008. Let us know your thoughts about it using our feedback page.
These are draft documents that are currently in the review process and we invite the water community to help us review them and provide commentary. You can submit your comments using our feedback page.
WaterML 1.0 — These draft documents are for the existing, published, version of WaterML.
This latest version of HydroExcel features right-click menus and additional buttons to improve the workflow, the ability to save raw WaterML files to disk as XML files, and the display of some additional items available in WaterML such as variable speciation.
This material is based upon work supported by the National Science Foundation (NSF) under Grant Nos. 04-12975, 041-3265, and 06-22374. Any opinions, findings and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the NSF.
