Research On Quality Improvement Method Of City-Waterway Surveying And Mapping Projects

Construction and regulation of the city waterway are the important components of the Eco-town construction and urban ecosystem recovery. Precise basic surveying and mapping is the technical and datum foundation of scientific planning,rational development in eco-town construction。But quality control is always a problem annoying surveyors in city waterway surveying and mapping .In recent years, with the development of surveying and mapping technology, especially the global positioning system technology, has been widely used in high-precision surveying and mapping. And the sounding technique is from the development conventional echo sounder to full-coverage multi-beam, which maps underwater topography more reliable and convenient.The article describes the requirements of the bathymetric quality control, analyses the factors influencing the quality in the waterway surveying and mapping projects, studies the key factors separately and identifies the direction to improve. Considering application of new technologies, promotion of advanced equipments and process of quality testing, the method is optimized in the whole process of surveying and mapping, improved in the key aspect. Analyzing the totally surveying project of Huangpu River channel, give the ways to improve the city waterway surveying and mapping quality and get high accurate surveying data, provide the foundation of waterway scientific planning,rational development, and must be valuable.