全球垂直基准网的建立方法

论述了联合多种数据建立全球垂直基准网的方法和意义，论证了联合卫星振动重力场模型、地面重力数据、地面重力扰动、卫星测高数据建立全球垂直基准网的新方法，提出了采用视重力场参数为非随机量的确定性解法．用这种方法获得的全球垂直网的精度可望比靠海洋潮汐测量联接的全球“水准网”高一个量级．

A METHOD FOR ESTABLISHING GLOBAL VERTICAL DATUM NETWORK

This paper deals with the method and importance of establishing the global vertical datum network with combination arious data.The methods of satellite-derived with gravity field models,terrestried gravimetry data,gravity disturbance and satellite altimetry are combined to establish a new method. It is suggested that the deterministic method of treating parameters of the gravity field as non-random variables should be used. With thismethod the established global vertical datum network can cover the Earth uniformly,and theaccuracy of the obtained global vertical datum network is expected to be raised to one amount scale with respect to the global "levelling networV" from the tide gauge measurements.