以参与ITRF2008解算的部分全球GPS测站垂向残差为研究对象,对其随地理位置变化的分布规律进行统计,并对引起该分布特点的地球物理机制进行了探讨。研究表明,GPS测站垂向残差随地理纬度和高程变化表现出明显的分布规律,这种分布规律与季节性温度变化有较强的相关性。
The relation of residual GPS site vertical residuals distribution and geographic location of GPS sites were analized with ITRF2008 data. The result indicates close relation of residual distribution to geographic location of GPS sites,and which is caused by seasonal temperature change.