Dear Colleagues, CUAHSI will present a series of 4 webinars this fall on the use of its Hydrologic Information System. This system federates many federal and university sources of time-series data, such as hydrologic and chemical data collected at stream gages. In addition, some gridded data, such as radar-precipitation data, have been ported from the native gridded format to a series of 'virtual gages' (at the centroid of the grid) so that a small portion of data can be downloaded and analyzed much more easily than dealing with the data in its original format.
Tune in to learn more about CUAHSI HIS and how it might help In your research. All webinars will be recorded and posted to www.cuahsi.org<http://www.cuahsi.org>. (1) Date: October 18, 3pm (ET) * Presenter: Daniel P. Ames and Jiri Kadlec, Idaho State University Title: Accessing the Water Data of the World Using HydroDesktop Description: The growing number of CUAHSI HIS HydroServers world-wide presents a unique opportunity to explore tools and techniques for efficient client-side data discovery and download. This webinar will show how to use the open source desktop GIS enabled HIS software tool, HydroDesktop. HydroDesktop is a desktop software application and search and discovery tool for exploring the distributed network of HIS servers, downloading specific data series, visualizing and summarizing data series and exporting these to formats needed for analysis by external software. HydroDesktop is based on the open source DotSpatial GIS developer toolkit (www.DotSpatial.org<http://www.DotSpatial.org>) which provides it with map-based data interaction and visualization, as well as an extensive plug-in interface that can be used by third party developers and researchers to easily extend the software using Microsoft .NET programming languages. Webinar participants will learn how to search for and download data, create graphs and maps, and export data to Excel for further analysis. (2) Date: October 25, 3pm (ET) * Presenter: Jeff Horsburgh, Utah State University Title: Data Visualization and Analysis Using the HydroDesktop HydroR Plug-in Description: The HydroR plug-in for HydroDesktop enables you to interface directly with the popular statistical computing environment R. In HydroR, you can link HydroDesktop to the R console and send both data and R commands from HydroDesktop to R. Any of the data that has been discovered and downloaded using the HydroDesktop search plug-in is available for analysis using the full set of data visualization and statistical analysis tools provided by R. The HydroR plug-in can send data directly from the HydroDesktop database to R, eliminating the time and effort required to manipulate and export data to formats that could be imported by R. R scripts developed in the HydroR script editor can be saved, exported, and imported for future analyses. This presentation will provide simple examples of how to use the HydroR plug-in to perform visualization and analysis of hydrologic time series data. (3) Date: October 31, 3pm (ET) * Presenter: Tim Whiteaker, The University of Texas at Austin Title: HydroDesktop Metadata Fetcher - Accessing services that are not registered at HIS Central Description: HydroDesktop's Metadata Fetcher gives you the ability to search for and access data from WaterOneFlow services that are not registered at HIS Central. When you provide URLs for Web services of interest to the Metadata Fetcher, it queries the services to build its own local catalog describing the time series available from those services. You can then instruct HydroDesktop to search this local catalog instead of HIS Central, using the same search interface that HydroDesktop users are already familiar with. This solution is valuable to Web service developers who want to test their services without making them public, to individuals behind an organization firewall which prevents their organization's services from being registered at HIS Central, and to users who happen to be aware of useful services that for whatever reason have not been registered at HIS Central. (4) Date: November 8, 3pm (ET) * Presenter: Jon Goodall, University of South Carolina Title: Component-based Modeling using the HydroModeler Plug-in Description: The HydroModeler plug-in for HydroDesktop enables component-based (e.g., plug-and-play) model development within the HydroDesktop environment. HydroModeler is built on the Open Modeling Inteface (OpenMI) Software Development Kit (SDK) and supports the use of other OpenMI-compliant models. We will begin by providing a brief overview of HydroModeler including key concepts from OpenMI that were used to construct HydroModeler. We will then present different tutorials to demonstrate how HydroModeler can be used for hydrologic science research and education. These examples make use of a growing catalog of model components available within HydroModeler as a free, open source community resource. Finally, HydroModeler's primary purpose is to serve as a framework where new modeling codes can be quickly developed, tested, and integrated into a larger modeling system, and so we will briefly describe how HydroModeler can be extended by creating new model components. I hope to see you on-line. Regards, Rick Hooper _________________________________________________ Richard Hooper Ph.D. Executive Director CUAHSI 196 Boston Avenue, Suite 2100 Medford, MA 02155 e: [email protected]<mailto:[email protected]> p: +1.202.777.7306 f: 202.777.7308 w: www.cuahsi.org<http://www.cuahsi.org> _________________________________________________ Richard Hooper Ph.D. Executive Director CUAHSI 196 Boston Avenue, Suite 2100 Medford, MA 02155 e: [email protected] p: +1.202.777.7306 f: 202.777.7308 w: www.cuahsi.org
