Along with global warming, rainstorm flood disaster is increasing, and the loss is more and more serious, so the warning of flood disaster risk is an important foundation for flood disaster prevention and mitigation. In order to meet the demands of flood risk warning and flood emergency management, we improved the spatial simulation of flood system in this study. Based on the combination of numerical simulation technology and spatial technology, such as remote sensing and geographic information systems, we established a risk warning model to improve the model adaptation, which is "surface runoff-basin submerged analysis-disaster risk assessment", using watershed surface runoff simulation instead of water level simulation in controlling section, that completely broke the constraints of watershed surface runoff and river water level simulation. Through the case study, this model shows higher accuracy and better timeliness. It would supply reliable and efficient method for flood disaster prevention and reduction.
LIAO Yongfeng, NIE Chengjing
. A Disaster Risk Warning Model for the Basin-wide Rainstorm Flood Management[J]. Journal of Geo-information Science, 2011
, 13(3)
: 354
-360
.
DOI: 10.3724/SP.J.1047.2011.00354
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