摘要
基于中尺度自动气象站降雨资料和1:5万高精度DEM(数字高程模型)数据,提出实用洪涝灾害监测的技术方法,通过对中尺度自动气象站降雨量的分析与处理,预判洪涝灾害淹没的大致发生区域。并以1:5万高精度DEM为基础数据,采用分区"水平面"近似方法,建立基于DEM的洪涝灾害监测模型。将该技术方法对试验区进行应用分析,通过中巴02B星对洪涝灾害监测结果的验证,发现基于DEM的洪涝灾害监测的淹没区与基于中巴02B星的洪涝灾害监测的淹没区在空间分布上十分吻合,表明该方法能够实时、较准确地对洪涝灾害进行监测,可为防洪决策服务提供科学依据。
A practical method of flood disaster monitoring was proposed based on meso-scale automatic weather stations rainfall data and 1∶5 million high-precision DEM （digital elevation model） data.It could predict roughly areas by the automatic weather station rainfall analysis and processing when the floods happen.Using partitions ＂horizontal＂ approximation methods,the model of DEM flooding disaster＇s monitoring had been constructed based on 1∶5 million high-precision DEM.And the technical methods applied to the analysis of experimental area.The result of flood disaster＇s monitoring was carried on comparison and the analysis through the verification by CBERS-02B.It found that the area of floods was very consistent by the model of DEM and CBERS-02B flooding disaster＇s monitoring.So the method of flood disaster＇s motoring based on DEM could be real-time,dynamic,accurately and effectively monitor the flood zone.It also could provide the decision making department with present and assisting scheme of policy making.
出处
《安徽农业科学》
CAS
北大核心
2010年第8期4169-4171,共3页
Journal of Anhui Agricultural Sciences
基金
广西科学研究与技术开发计划项目(桂科攻0719005-3
桂科攻0816006-8)
