CUAHSI HydroDesktop Application Overview
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This document provides an overview of the Hydrologic Information System (HIS) and the HydroDesktop application. It describes how HIS functions as a web service to provide access to hydrologic data through standardized tools and procedures. HydroDesktop is presented as a client application that utilizes HIS web services and MapWindow GIS components to allow users to search for, download, display and analyze hydrologic time series data. The document outlines key capabilities of HydroDesktop such as data search, download, time series viewing and plug-in development.
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CUAHSI HydroDesktop Application Overview
- 1. Hydrologic Information Systems and the CUAHSI HydroDesktop Application Jiri Kadlec, Daniel Ames, Tevaganthan Velupillai Idaho State University Some Slides Courtesy of the CUAHSI HIS Project Team
- 2. Talk Overview • Hydrologic Information System • HydroDesktop Application • MapWindow GIS Components • Community Development
- 3. What is HIS? • The CUAHSI* Hydrologic Information System (HIS) provides web services, tools, standards and procedures that enhance access to more and better data for hydrologic analysis. • http://his.cuahsi.org *Consortium of Universities for the Advancement of Hydrologic Science, Inc. http://www.cuahsi.org
- 4. Water Data Water quantity and quality Soil water Rainfall & Snow Modeling Meteorology Remote sensing
- 5. HIS System Overview USGS Dat Web HIS Central a Service HIS Central Metadat Data a Registration Catalog EPA Dat a Data Access Data Discovery Universities And Access Dat a Hydro Desktop HIS Servers Users
- 6. Data Archives Real‐time Sensors HIS Server • Built for HIS Server Observations Data Model Database SQL data Server – Storage WaterOneFlow – Loading Web Service ODM Tools – Analysis – Publication • HIS Outside Users Local Users
- 7. Getting Water Data (the old way) Different Query Pages Different Query Responses
- 8. Web Pages versus Web Services http://his.safl.umn.edu/SAFLMC/cuahsi_1_0.a http://www.safl.umn.edu/ smx Uses Hypertext Markup Language (HTML) Uses WaterML
- 9. HTML as a Web Language HyperText Text and Pictures Markup Language in Web Browser <title>Texas Water Development Board</title> <!DOCTYPE HTML PUBLIC "‐//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta name = "Robots" content = "index,follow"> <meta name = "Priority" content = "home,twdb,homepage"> <meta name = "Author" content = "Texas Water Development Board, Agency Number 580"> <meta name = "Title" content = "Texas Water Development Board"> <meta name = "Description" content = "Texas Water Development Board Home Page"> <meta name = "Keywords" content = "water,drought,rain,conservation,groundwater,surfacewater,lake,reservoi r,hydrology,geology,desalination,TWDB,loans,grants,wastewater,sewage,C lean Water,Drinking Water,State Revolving Fund,planning,State Water Plan,GIS,Geographic Information Systems,Mapping,data">
- 10. WaterML as a Web Language Streamflow data in WaterML language Discharge of the San Marcos River at Luling, June 28 ‐ July 18, 2002
- 12. HydroDesktop GIS Capabilities GIS •Add shapefiles to map •Change symbology and labels •Print and export map •GIS toolbox and Modeler Hydrology •Search for data •Download data •Display time series •Export data
- 13. HydroDesktop Data Search Search Criteria •Where? (geographic region) •What? (variable – keyword) •When? (time range) •Who? (data providers) Example: Air Temperature in Quebec Province
- 14. HydroDesktop Data search – select region Region selection •Draw bounding box •Select polygons •Select Country •Select State •Select County •Select Watershed
- 16. HydroDesktop Data search – Search Results Air Temperature - Quebec
- 18. Hydrodesktop Table View • List of time series (legend) • Data values table • Export to text file / csv/ Excel
- 19. HydroDesktop Building blocks Web Service API Layer Database Access MapWindow HIS Server Actual Data GIS Web Services Dababase Component s HydroDesktop Metadata Main HIS Central Cache Web Service Database Application Plug-in Interface Metadata plug-in Graph View plug- Search plug-in in
- 20. MapWindow GIS Components • Map • Legend • Toolstrip • Toolbox • Progress Handler • Plug-in Manager
- 21. MapWindow Components - Map • Drag – drop components to the form in Visual Studio or SharpDevelo p
- 22. HydroDesktop Plug‐in Development Existing plugins •Metadata Fetcher •HydroModeler (Open MI) •Graph View •Advanced Search
- 23. HydroDesktop Collaborative Development A web‐based collaborative software development environment was set up on CodePlex.com. This site includes a discussion forum, wiki, source www.HydroDesktop.org code repository and versioning system, and bug/issue tracking system.
- 24. Thank you for your attention www.HydroDesktop.org www.mapwindow.org