TAILIEUCHUNG - Báo cáo " Application of hydro-mathematical models for flood forecast and inundation warning of Tra Khuc-Ve River basins "

The papers present the results of study on application of rainfall-runoff, channel routing models for improvement and extending forecast lead time and Diffusion Hydrodynamic Model (DHM) for inundation warning of Tra Khuc and Ve river basins. Keywords: Time of concentration Tc, update of forecast errors, flood forecast, inundation warning. 1. Introduction∗ For river basins in the central coastal provinces, the rivers has steep terrain, plains adjacent to the sea are relatively flat, so every year, floods and flash floods caused heavy damage to persons and property of people in the areas. The floods on the central river basins are. | VNU Journal of Science Earth Sciences 27 2011 47-53 Application of hydro-mathematical models for flood forecast and inundation warning of Tra Khuc-Ve River basins Luong Tuan Anh Vietnam Institute of Meteorology Hydrology and Environment 23 62 Nguyen Chi Thanh Hanoi Vietnam Received 3 March 2011 received in revised form 18 March 2011 Abstract. The papers present the results of study on application of rainfall-runoff channel routing models for improvement and extending forecast lead time and Diffusion Hydrodynamic Model DHM for inundation warning of Tra Khuc and Ve river basins. Keywords Time of concentration Tc update of forecast errors flood forecast inundation warning. 1. Introduction For river basins in the central coastal provinces the rivers has steep terrain plains adjacent to the sea are relatively flat so every year floods and flash floods caused heavy damage to persons and property of people in the areas. The floods on the central river basins are characterized by short concentration time fast flood rising up widespread flooding and often cause difficulties for the implementation of response measures for flood situation. Therefore for the region information on flood forecasting and inundation warning is very important to take the prevention measures and activities for reduction damages caused by flooding. To serve the flood forecasting and warning for the central region several measures have Tel. 84-4-38343560. E-mail tanh@vkttv. edu. vn been proposed and applied at the Central Hydro-meteorological Prediction Center Research Center for Hydrology and Water Resources and Regional Hydro-meteorological Services to extend the lead time for flood forecasting inundation warning such as - Classification of the combination of weather statures caused heavy rainfall to Central provinces for early identifying the rainfall-flood situations - Refer to the numerical predicted rainfall results interpretation of cloud satellite image and radar image for warning the flood .

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