GPS在淤地坝淤积监测中的应用  

Application of GPS in sediment monitoring of silt retention dams

作　　者：艾绍周[1] 郝凤毕[1] 马三保[1] 马胜平[1] 

机构地区：[1]黄河水利委员会黄河水土保持绥德治理监督局

出　　处：《中国水利》2005年第12期54-56,共3页China Water Resources

基　　金：黄土高原水土保持二期世行贷款项目中央子项目科研课题"小流域坝系监测方法及评价系统研究"部分研究内容

摘　　要：随着卫星定位系统的发展,GPS的发展和应用已进入一个新阶段,它在水土保持领域的应用将更加广泛。采用GPS系统对王茂沟小流域的淤地坝进行了淤积监测,在国家北京54坐标系下精度分析基线解算最差边相对误差为1∶369511,精度达2.7×10-6;同观测点不同时间监测高程误差仅为3mm。为GPS系统在水土保持淤地坝监测中的应用做了有益的探索。GPS development and application has entered into a new stage along wit h development of satellite positioning system, which was widely adopted in the f ield of water and soil conservation. GPS system has monitored in Wangmaogou smal l watershed for sediment monitoring of silt retention dams and accurately analys is under 54 coordinate in Beijing, its relative error has a tolerance of less th an 1: 369511, and the accuracy reaches to 2.7×10-6. The error of same observati on points in different times is only 3 mm. Its application is beneficial for mon itoring of silt retention dams of water and soil conservation.

关 键 词：淤地坝 应用 监测 淤积 GPS系统 卫星定位系统 水土保持 相对误差 基线解算 精度分析 高程误差 新阶段 小流域 王茂沟 坐标系 观测点 

分 类 号：P228.4[天文地球—大地测量学与测量工程] TV649[天文地球—测绘科学与技术]