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Application of the CUAHSI Hydrologic Information System in the Czech Republic

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Application of the CUAHSI Hydrologic Information System in the Czech Republic

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  1. Application of the CUAHSI Hydrologic Information System in the Czech Republic Jiří Kadlec, Daniel P. Ames, Michal Jeníček Department of Physical Geography, Charles University, Prague Geospatial Software Lab, Idaho State University

  2. Presentation Overview • Water Issues in the Czech Republic • Hydrologic Simulation Models – Data requirements • CUAHSI HIS System • Case study - Drought • Adaptation in the Czech Republic – challenges • Future Prospects Ostravice, Beskydy Vltava, Praha

  3. Location of CZ – European continental divide

  4. Water Resources in Czechia - Issues • Flash Flood, Soil Erosion • Flood Events • Drought Periods • Water Quality Issues

  5. Hydrologic Simulation Models FREE and / or open source: • WASIM-ETH • HSPF • SWAT All require hydrologic (mainly climate) data for validation Source: Distributed rainfall-runoff project

  6. Increasing demand for hydrologic information • Recreational Users • Agriculture • Environmental Groups • Communities • Small Businesses • Scientists

  7. Availability of hydrologic Information • Very restrictive • Czech Hydrometeorological Institute • Soil Research Institute • Less restrictive • Volunteer Observers ( > 300 locations) • Universities • Watershed Authorities

  8. Obtaining Hydro Data in Czechia(get precipitation from my watershed)

  9. Accessing restricted information – example (raft.cz)

  10. CUAHSI HIS System • WaterML: standard format for sharing hydrologic information, focus on metadata • WebServices: standard protocol for distributed sharing of information on the web • HydroDesktop: open source GIS desktop program for hydrologic data analysis http://his.cuahsi.org

  11. Implementation of Web Services • Implement the web methods: • GetSites • GetVariables • GetVariableInfo • GetSiteInfo • GetValues

  12. Part of web Service Implementation (HS Brdy) • Uses a Webhosting Service • Blog Engine (upload snow info)

  13. Web Service Output in WaterML 1.1 http://hydrodata.cz/cz_snow/cuahsi_1_1.asmx/GetSiteInfoObject?site=CZSNW:1&authToken= SOAP and REST Protocols are Both supported In WaterML 1.1

  14. Snow depth in HydroDesktop(map of sites)

  15. Snow depth in HydroDesktop(time series)

  16. Experimental Watershed Web Service Response (Charles University Prague) Cummulative Precipitation Graph

  17. Charles University Prague – Simple Web map application Hover the mouse over site ..

  18. Precipitation web service (under development) • Image available at: • http://hydro.chmi.cz/hpps • 15 classes (intervals), log scale • Ground station pixels marked as ‘+’ • Country boundary pixels • Major river pixels Read numbers using ANN (WTA) Estimate precipitation on boundary and river pixels Check precipitation value number pixels Find Ground Station Pixels Reprojection (Gnomonic  UTM)

  19. HIS Data Usage – Drought Analysis • Meteorological drought (mass curve method) • Hydrological drought (deficit volumes) WaterML Service ECA-D Dataset R script for reading ECA-D Hydro Desktop HydroR R drought Processing script

  20. Hydrologic Drought (Deficit volume)

  21. Future Prospects • Cooperation of more data providers • Fully support OGC Standards – motivates more organization • Online payment system for accessing the data • Fill gaps using satelite derived products • Expand CUAHSI HIS to whole world!

  22. Thank you for Attention • www.hydrodesktop.org • http://hydro.natur.cuni.cz • http://hydrodata.cz