DESWAT project (Destructive Water Abatement and Control of Water Disasters)

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1 A new national hydrological forecast and warning system is now in advanced implementation phase, within the Romanian Waters National Administration, in the framework of DESWAT project. The main objectives of the DESWAT project are: Upgrade of the hydrological monitoring system, consisting of: 633 automatic hydrometrical stations (water level, air and water temperature and precipitation sensors); 247 supplemental raingauge automatic stations; about 70 hydrometrical stations will also have water quality sensors (dissolved oxygen, conductivity, ph, turbidity, etc); Implement advance hydrological data integration, processing and modeling software systems. Integration with SIMIN project (Romanian Integrated Meteorological System). The DESWAT Hydrological Forecasting and Modeling System relies upon gauge- corrected hourly to sub-hourly radar-based quantitative precipitation estimates, that are used as inputs to a series of real-time hydrological forecasting systems. FLOOD MANAGEMENT WORKSHOP

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3 The first main component of this hydrological modeling system is represented by a complete implementation of the National Weather Service River Forecasting System USA (NWSRFS), that will be used to elaborate hydrological forecasts, in an interactive way, for medium and large scale basins. FLOOD MANAGEMENT WORKSHOP

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5 After the historical calibration FLOOD MANAGEMENT WORKSHOP With apriori estimated parameters

6 The second component is the distributed modeling component, which is mainly based on the NOAH-R model, model that contains five primary interacting physical process sub-models, with a land surface model (LSM) which runs at the radar-scale (1km), and overland and channel routing model, nested within the LSM, at 100m resolution. FLOOD MANAGEMENT WORKSHOP

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11 The system also includes a Flash-Flood Guidance component, in which soil-moisture deficits are estimated in a continuous way, using a conceptual hydrological model for every small basin (with a mean area of km2). The deficits are used together with up-todate (1hr, 3hr and 6hr) precipitation totals to estimate the amount of additional precipitation needed for streams to reach bankfull conditions. FLOOD MANAGEMENT WORKSHOP

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15 Plan for the future For us, the implementation of the DESWAT Hydrological Modeling and Forecasting System is not an end, is in fact the foundation for a new start for a new evolution cycle of the Romanian National Hydrological Forecasting System, with the following main objectives: Improve the forecasters main control user interface to the modeling systems; Add multimodel and ensemble hydrological forecasts capabilities; Use 1D/2D hydraulic routing models in real-time; Improve the dissemination system; Continuous improvement of the calibration and/or configuration of the hydrological forecasting models in use; Develop special data assimilation procedures for the operational hydrological distributed models (NOAH) Dynamic flood mapping; FLOOD MANAGEMENT WORKSHOP

16 Thank you very much for your attention!