高原湖泊测量水深改正技术探讨
The Measure Water Depth Correction Technology in Plateau Lake

高原湖泊测量属国家水利前期工作项目，因为测区自然环境恶劣、地处无人区、安全风险极高、组织实施困难、测量技术要求高等特点，故基本国情信息资料处于空白。湖泊容积量算是此项工作的重要内容之一，通过水深量算出湖泊容积并和湖面积、水位建立曲线关系。本文主要探讨了高原湖泊测量中水深测量的改正问题，采用基于水深层内常梯度下的声线跟踪声速改正和Hypack软件水深改正两种不同的水深改正方法进行水深改正，并对改正水深进行对比分析，对改正效果进行评价，通过分析找出适合西部湖泊容积量算的水深改正方法，为后期西部重要湖泊测量提供技术参考。
The plateau lakes survey in Western China belongs to the preliminary work of national water conser-vancy. Because of the bad natural environment, the unmanned area, the high risk of safety, the difficul-ties of organization and implementation, and the high requirement of measurement technology, the information about the basic situation of China is in the blank. Lake volume measurement is one of the important contents of this work, the curve relationship with lake area and water level is established by correct water depth. This paper mainly discusses the correction of bathymetry in the measurement of important lakes in the west. Two different depth correction methods are used to correct water depth: the sound line layer under the constant gradient velocity correction and tracking based on Hypack software of depth correction, the depth correction is compared and analyzed, the correction effect is evaluated, through the analysis to find suitable for Western Lake volume calculation method of depth correction, it affords the technique reference of later western important lakes measurement.