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Application of the CUAHSI Hydrologic Information System in the Czech Republic. Ji ří Kadlec, Daniel P. Ames , Michal Jeníček. Department of Physical Geography , Charles University, Prague Geospatial Software Lab, Idaho State University. Presentation Overview.
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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
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
Water Resources in Czechia - Issues • Flash Flood, Soil Erosion • Flood Events • Drought Periods • Water Quality Issues
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
Increasing demand for hydrologic information • Recreational Users • Agriculture • Environmental Groups • Communities • Small Businesses • Scientists
Availability of hydrologic Information • Very restrictive • Czech Hydrometeorological Institute • Soil Research Institute • Less restrictive • Volunteer Observers ( > 300 locations) • Universities • Watershed Authorities
Obtaining Hydro Data in Czechia(get precipitation from my watershed)
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
Implementation of Web Services • Implement the web methods: • GetSites • GetVariables • GetVariableInfo • GetSiteInfo • GetValues
Part of web Service Implementation (HS Brdy) • Uses a Webhosting Service • Blog Engine (upload snow info)
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
Experimental Watershed Web Service Response (Charles University Prague) Cummulative Precipitation Graph
Charles University Prague – Simple Web map application Hover the mouse over site ..
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)
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
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!
Thank you for Attention • www.hydrodesktop.org • http://hydro.natur.cuni.cz • http://hydrodata.cz