M9在丹东潮位站水下地形测量中的应用

Application of M9 in underwater topographic survey at Dandong tide gauge station

潮位站水位变化较大,受水流冲刷影响频繁,断面冲淤变化较大,水下地形复杂,采用传统测量手段费时、费力。M9是一种新型的水文测验仪器,采用RTK模式下的测量手段,能够准确、快速的进行水下地形的测量,结合后期数据处理生成DEM模型,为潮位站水下地形测量提供新的思路和方法。

The water level at tide gauge station changes greatly and is affected by the current scouring frequently.The cross section changes greatly due to erosion and deposition.The underwater topography is complex.The tradi⁃tional measurement method is time-consuming and laborious.As a new type of hydrometric instrument using RTK mode measurement means,M9 is able to accurately and quickly carry out underwater topographic survey,and to generate DEM model combined with post-processing of data,which provides new idea and method for underwater terrain measurement of tide station.