FLOOD FORECASTING AND COMMUNICATION TECHNOLOGY FOR BUILDING AN EARLY FLOOD WARNING SYSTEM FOR QUANG TRI PROVINCE AND VICINITY AREAS

Abstract

The article presents the construction of a decision support software system serving the flood and inundation early warning system for Quang Tri province and neighboring areas, aiming to improve disaster response capacity. The system applies hydrological and hydraulic mathematical models (MIKE NAM, HEC-ResSim, MIKE11, MIKE Flood) to simulate 282 flood scenarios combined from weather patterns and reservoir operating conditions, water level information on the river system, tide level at estuaries. The warning software uses a decision tree algorithm to interpolate flood maps from rainfall forecast data, water levels on the river system, reservoirs and estuary tides. The software is a tool to support forecasting results quickly for forecasters to overcome the limitations of model calculation time. The software has pre-calculated a combination of scenarios, thereby overcoming the limitations of mathematical modeling expertise of operators in disaster prevention and control work. In addition, the technology of transmitting warning messages via WebGIS platform and mobile applications helps people easily access warning information via the Internet and smartphones in severe flood conditions, helping to respond to natural disasters more effectively.