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AN OUTLINE OF WISKI 7 & HBV SYSTEMS IMPLEMENTED AT THE HYDROMETEOROLOGICAL SERVICE OF SERBIA by

BALWOIS 2010 Water Observation and Information System for Decision Support Ohrid, Republic of Macedonia 25-29 May 2010. AN OUTLINE OF WISKI 7 & HBV SYSTEMS IMPLEMENTED AT THE HYDROMETEOROLOGICAL SERVICE OF SERBIA by.

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AN OUTLINE OF WISKI 7 & HBV SYSTEMS IMPLEMENTED AT THE HYDROMETEOROLOGICAL SERVICE OF SERBIA by

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  1. BALWOIS 2010 Water Observation and Information System for Decision Support Ohrid, Republic of Macedonia 25-29 May 2010 AN OUTLINE OF WISKI 7 & HBV SYSTEMS IMPLEMENTED ATTHE HYDROMETEOROLOGICAL SERVICE OF SERBIA by Mihailo Andjelic1, Elin Langsholt2, Robert Gal3, Slavimir Stevanovic1, NenaKovacevic1 1Hydrometeorological Service of Serbia, Belgrade, Serbia 2Norwegian Water Resources and Energy Directorate (NVE), Oslo, Norway 3KISTERS AG, Aachen, Germany BALWOIS 2010 - Ohrid, Republic of Macedonia

  2. CONTENT • Background • NVE, RHMSS, Partnership • Current NVE-RHMSS Project & its Objectives • HBV/IHMS • Basic features • Initial use in Serbia • WISKI 7 • Main characteristics • Implementaton in Serbia • Current status • Tasks ahead BALWOIS 2010 - Ohrid, Republic of Macedonia

  3. BACKGROUND • NVE– Norwegian Water Resources and Energy Directorate • Under the Ministry of Petroleum and Energy, based in Oslo • Responsible for the management of Norway’s water and energy resources • Has sole responsibility for hydrology in Norway, including real-time hydrological forecasting & flood warning • RHMSS – Republic Hydrometeorological Service of Serbia • Independant Govenment Agency • Solely responsible for monitoring & forecasting of meteorological and hydrological phenomena in Serbia • Partnership between NVE & RHMSS in the field of hydrology started in 2006 with financial support of the Norwegian Govenment and still ongoing BALWOIS 2010 - Ohrid, Republic of Macedonia

  4. BACKGROUND(continued) • Current NVE-RHMSS Project • A 2-year project ( 2009 & 2010) entitled - Hydrologicalfloodforecastingsystemforsmallandmediumsizedcatchments in Serbia • It is currently being implemented and scheduled to be completed in December 2010 • Financial support provided by the Govenment of Norway • Objective: • Assist RHMSS in improving its data management and hydrological flood warning and forecasting services BALWOIS 2010 - Ohrid, Republic of Macedonia

  5. BACKGROUND(continued) • The main outputs: • Introduced and used operationally a new modern hydrological information management system(HIMS) for management of both real-time and non real-time hydrological, meteorological and other data • Installed and used regularily a viable rainfall-runoff model for real-time flood warnging and forecasting at 13 selected small & medium river basins in Serbia • The two systems integrated to provide smooth data management and flood forecasting procedures in real-time • Technical staff of RHMSS trained as appropriate BALWOIS 2010 - Ohrid, Republic of Macedonia

  6. HBV/IHMS MODEL • Purchased from SMHI, Sweden • Rainfall/snowmelt – runoff type model • Developed in early 1970s at SMHI • Worldwide applications in different versions • Used for various purposes: • simulations of river flow regime • flood forecasting • energy inflow forecasts • flash flood forecast • simulation of climate change • water quality simulation BALWOIS 2010 - Ohrid, Republic of Macedonia

  7. HBV/IHMS AT RHMSS • Semi-distributed conceptual catchment model • Spatial structure of catchment area is not explicitly modeled • Instead, sub-basin represents primary modelling unit while basin is characterised by • Area-elevation distribution • Classification of vegetation cover and land use distributed by height zone • HBV consists of three main modules: • Snow accumulation and snowmelt • Soil moisture accounting • Catchment response module • Rainfall/snowmelt-runoff processes in the catchment are controlled by parameters selected during the model calibration BALWOIS 2010 - Ohrid, Republic of Macedonia

  8. HBV/IHMS AT RHMSS • Minimum catchment data required for model calibration and verification: • 20 years of historical daily ( or higher resolution- down to 1 hour) discharge, temperature and precipitation time series of good quality • 10 years for calibration • and 10 years for verification • Estimated average monthly evapotranspiration • Hypsometric curve (area-elevation distribution) • Vegetation cover and land use distributed by height zone • No significant man-made influence on natural streamflow regime • Real time input data required for flood forecasting • Observed stage, discharge • Observed precipitation and temperature data ( or interpolated values) • Gridded quantitative precipitation forecasts (QPFs) BALWOIS 2010 - Ohrid, Republic of Macedonia

  9. HBV/IHMS – INITIAL USE • Three pilot catchments • Jasenica, Kubrsnica, Toplica • Model calibrated by manually adjusting model parameters • Main criteria used for final selection of parameter values: • Optimal fit of observed versus simulated discharge • Model performance evaluated through: • Visual inspection of the observed and simulated hydrographs • Double mass plot, and • Three quantitative measures of forecast accuracy • mass bias • Nash-Sutcliffe (N-S) error function • log transformation of the N-S function BALWOIS 2010 - Ohrid, Republic of Macedonia

  10. HBV/IHMS: Case of Toplica River • Hydrological profile: Doljevac • Calibration period: 1997 – 2007 • Validation period 1986 – 1996 • Area: 2054 km2 Model performance ( N-S value) for the 3 pilot catchments BALWOIS 2010 - Ohrid, Republic of Macedonia

  11. Temperature Precipitation Snow Soil Moisture Content Accumulated runoff error HBV/IHMS: Case of Toplica River Q-values at Doljevac in calibration period: 2004-2006 Observed Calculated BALWOIS 2010 - Ohrid, Republic of Macedonia

  12. Temperature Precipitation Snow Soil Moisture Content Accumulated runoff error Observed Calculated HBV/IHMS: Case of Toplica River Q-values at Doljevac in validation period: 1994-1996 BALWOIS 2010 - Ohrid, Republic of Macedonia

  13. HBV/IHMS – Next Steps • Prepare necessary data for 10 more catchments in Serbia • Calibrate and verify the HBV model at all catchments • Integrate HBV and WISKI 7 systems for export and import of real time data and HBV products • Start issuing operational real-time flood forecasts at 13 selected rivers using HBV model & W7 data management system BALWOIS 2010 - Ohrid, Republic of Macedonia

  14. WISKI 7 DATA MANAGEMENT SYSTEM • New system for water resources and hydrological information management - purchased from KISTERS AG, Germany • It is a reputed company working over 20 years in developing and providing data management software solutions • Core business: implementation of data management systems for environmental, water resources, hydrological, meteorological, air quality, health and energy applications • KISTERS is said to strive to meet rigorous data management requirements promulgated by: • the EU Water Framework Directive and • the US Geological Survey BALWOIS 2010 - Ohrid, Republic of Macedonia

  15. WISKI 7:Basic Characteristics • Unique, high performance time series management • structural relational database • data acquisition, data validation • calculations, statistics • data exchange • storage management • data presentation • spatial projection • web publishing • Integrated modules • BIBER – Flow measurement • SKED – Rating curve editor • WSP: WISKI Service Provider for automation of operational processes BALWOIS 2010 - Ohrid, Republic of Macedonia

  16. SODA Telemetry WISKI 7 ARCHITECTURE Basic three tier client-server architecture BALWOIS 2010 - Ohrid, Republic of Macedonia

  17. WISKI 7 INSTALLED AT RHMSSCurrent Status BALWOIS 2010 - Ohrid, Republic of Macedonia

  18. WISKI 7:Planned Uses at RHMSS • The aim is to integrate within WISKI the following main data collection, processing and management components of the RHMSS’ Hydrology Department: • Use WISKI to replace the existing Oracle-based database of HD • Migrate all the historical data into WISKI 7 • Link to WISKI the digitizer currently used for digitization of chart recorders • Use WISKI utilities for preparing various types of reports, graph presentations, etc. • Use WISKI for import and management of all the real-time data • Develop within WISKI the necessary routines for exporting data to the HBV server • Develop within WISKI the necessary routines for importing all the HBV results • Use WISKI for preparing flood forecasting bulletins and their dissemination • Use available WISKI utilities for various types of classical analysis in hydrology • Manual entry of non-real time data into WISKI by using WISKI Web Input mask BALWOIS 2010 - Ohrid, Republic of Macedonia

  19. HBV & WISKI 7 AT RHMSS:Tasks Ahead • The two systems are not yet in full use at the HD/RHMSS • Some of the major tasks that lie ahead: • Completion of training on the use & operation of HBV and WISKI 7 • Migration of all archived historical data from old Oracle to WISKI 7 • Full integration of WISKI and HBV • Preparation necessary data for 10 more catchments in Serbia • Setting up an operational real time flood forecasting system for each catchment HBV / IHMS WISKI 7 BALWOIS 2010 - Ohrid, Republic of Macedonia

  20. Thank you for your patience! Web sites: www.hidmet.gov.rs www.nve.no www.kisters.eu BALWOIS 2010 - Ohrid, Republic of Macedonia

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