水位观测仪器的选择与应用

水位是江，河，湖，海水势变化的标志，水位观测是水文测验中最基本的项目之一，而水位观测仪器的质量，性能直接关系到水文资料的收集及其成果质量，因此，选择水位观测仪器至关重要，它直接关系到资料收集的连续性和成果质量的可靠性，对于实现水文技术现代化有着十分重要的意义，本文对长江口区各潮位站自记水位计的工作原理，可靠性，资料精度进行了分析评价，在此基础上，提出选用水位观测仪器的参考意见。

Selection and application of water level measurement

Water level is a mark of the flow change of river , lake and sea . Water level measurement is one of the most important hydrological survey . The quality and specifications of water level gauge is relative to the quality of hydrological data and results , and is the most important things for accomplishing the modernization of hydrological survey . The working theory of the gauges used in the stations at the mouth of Changjiang River and the accuracy of data is described in this paper, and the reference idea for how to choose the gauges is given in the paper, too.