近地面效应引起的静态记录道时移可严重地降低地震资料的全部质量。有一些效应如高程等可被直接测量出来。可将井口时间记录下来估计风化层影响,但地面震源的出现导致没有可用的井口时间。因此,最终的静校正量一定从资料中直接测定出来。必须将每一道与其相邻道相比较以获得它们之间的相对时移。结果在野外磁带中有多少记录道,就有多少次静态时移测定。这些测定并不完全互相独立,但它们之间的联系的方式 Static track time-shifts caused by near-surface effects can severely reduce the overall quality of seismic data. Some effects such as elevation can be measured directly. Wellhead time can be recorded to estimate weathering effects, but the presence of surface hypocenters results in no available wellhead time. Therefore, the final static correction must be measured directly from the data. Each track must be compared to its adjacent track to obtain a relative time shift between them. The results in the field tape how many records, there are how many times the static shift measurement. These measurements are not completely independent of each other, but the way they relate to each other