【摘要】 详细地叙述了用ＧＰＳ和应变测量数据计算地壳水平速度和水平应变率的方法，这一方法满足变形协调性条件。用全国和大华北地区ＧＰＳ网的多期观测数据进行了试算，获得了一系列地壳水平运动和应变率场分布的图像。根据这些计算结果，可以初步得出如下结论：（１）ＧＰＳ能够有效地监测到现今地壳运动和形变的信息；（２）所述的计算方法是有效的，其计算结果比直接测量结果提供了更多的有关现今地壳运动和形变的信息更多还原

【Abstract】 The method for computing crustal horizontal velocities and strain rates with repeated GPS survey and other crustal deformation measurements has been presented in detail. Based on the data taken from the Crustal Deformation Monitoring networks with GPS in the whole country and North China, the average horizontal velocities of the points of networks and the simulated horizontal velocity and strain rate fields in the corresponding areas have been derived. From those results, it can be tentatively concluded as follows:①GPS can effectively detect current crustal motion and deformation, and ②the method presented in the paper is valid, with which the calculated results can provide more information about the present crustal motion and deformation than direct observation data.更多还原