In addition to the TC4 campaign and AIM, a string of NASA climate-sensing satellites called the A-train is providing a global survey of the vertical profile of clouds.
The transforming of survey datum and the control of axis, vertical level, elevation are of great importance on controlling quality of high-rise building construction.
在高层及超高层建筑工程中，测量基准传递和轴线、垂直度、高程控制是建筑物施工质量控制的重点内容之一。
3
This paper mainly presents a new survey method for volumetric calibration of vertical cylindrical tanks by using total station instrument without prism.