摘要
文章以内蒙古西部乌苏图勒河流域为范例,利用该流域2013—2014年逐小时降水和洪涝灾情资料,以及流域地形、土壤、土地利用等多源下垫面信息,构建了乌苏图勒河流域的径流—淹没模拟模型,并通过致灾过程的反演,建立了该流域不同气象风险预警等级(有一定风险、较高风险、高风险、很高风险)的动态临界面雨量方程。该方法的建立,对乌苏图勒河流域山洪灾害预警具有指导意义,也可为水文资料缺乏的流域确定致灾临界面雨量指标提供一种参考。
Taking the basin of Wusumle River m the west of Inner Mongolia for example in this paper, using hourly precipitation data and flood disaster data from 2013 to 2014, as well as different underlying surface information, such as terrain, soft, land useand so on, the runoffflood model was built in the basin of Wusutule River. Through inversion of the hazard processes, the equations of dynamic critical surface precipitation were established in different meteorological risk warning grade（a certain risk, high risk, higher risk and highest risk）. The establishment of this method had the guiding sense to flood warning of Wusutule River, and could provide a reference for determination of the critical surface precipitation norms in the basin which was lack of hydrological data.
出处
《内蒙古气象》
2016年第5期31-34,共4页
Meteorology Journal of Inner Mongolia
基金
内蒙古气象局应用研究与技术开发资助项目(nmqxkjcx2013015)
关键词
中小流域
山洪风险预警
径流—淹没模型
动态临界面雨量
middle and small drainage basin
flood risk warning
runoff-flood model
dynamic critical surface precipitation
