高原湖泊容积测量中的关键技术及应用

为能在高原特殊的地理气候条件下，精确获得高原湖泊的面积、容积、水深等重要特征资料，在青海湖、纳木错的测量中，采用星站差分GPS RTK技术、GPS高程拟合、中继站通讯，以及一体化测量技术，有效解决了诸如在无CORS基站情况下网络GPS RTK信号不能覆盖全湖区、沿青海湖长距离布设水位站必须的水准往返联测，以及深度改正、波浪改正等难题，所获得的测量成果准确可靠，填补了高原湖泊历史资料的空白。所运用的先进测量方法，为今后在类似地区开展测量工作提供了借鉴。

Application of key technology in survey of lakes volume in plateau

In order to obtain the area,volume and depth of lakes in plateau precisely under the special geographical and climatic conditions there,the technologies such as satellite difference GPS RTK,GPS elevation fitting,relay station communication and integration measuring are adopted in the survey of Qinghai Lake and Nam Co Lake.The problems,including incomplete coverage of GPS RTK signal on the entire lake region without CORS base station,without compulsory level roundtrip connection surveying in level station arrangement along long distance round Qinghai Lake,depth correction and tide correction,are solved,which fills the blank of historical data of lakes in plateau.The advanced surveying technology can be referenced in the survey of similar regions.