水库群联合防洪调度系统建设关键技术--以金沙江下游梯级和长江三峡水库为例

摘要

介绍金沙江下游梯级与三峡水库联合防洪调度系统涉及的GIS集成平台、洪水演进模型（包括库区及下游河湖等）、水库群防洪调度模型等关键技术，通过有机融合计算机信息技术，将地理信息系统及三维仿真平台与水文专业模型无缝衔接，实现更加科学、综合、直观、高效的防洪调度运用模拟及表达方式。调度系统从流域整体的角度考虑防洪问题，将上游水库群与下游河、湖等防洪要素有机结合，可提高水库群联合防洪的效果，为长江流域的防洪调度决策提供有力的技术支撑。%A united flood control operation system of the lower Jinsha cascade reservoirs and Three Gorges Project has been established.In this system, three key technologies are applied , namely, the GIS and 3-dimensional simulation platform , the flow regime simulation , and theflood control model for cascade reservoirs .Adopting computer science tech-nology , the flood control operation system presents scientific , comprehensive , straightforward and efficient expressions of different flood control scheme scenarios , which integrates the GIS and professional water conservancy computation mod-els.Taking all the flood control operational issues in the whole drainage area in consideration , such as the reservoirs , embankment and suspension areas , the practice has been proven that the flood control operation system can significantly improve the flood control function of cascade reservoirs , and provides an effective flood decision making support for the Yangtze River Basin .