复杂地区静校正方法研究

Study on static correlation approaches in complex area

静校正问题的解决要做到有理有序。有理就是根据近地表实际情况,选择合适的静校正方法;有序就是解决静校正问题需要遵循先长波长、后中短波长及剩余静校正的顺序。为了解决复杂地区的静校正问题,首先要建立近地表模型,然后应用模型约束折射静校正解决长波长静校正问题,接着应用折射波剩余静校正解决中短波长问题,最后应用分频静校正解决剩余静校正问题。实际资料处理表明这套方法能够取得很好的效果。

It should be done with reasonableness and ordering for solving the issue of static corrections. The reasonableness means selection of suitable static corrections according to the practical situation of near surface; the ordering means that it should follow the order of long-wavelength being first, then the mid-to-short wavelength as well as residual static corrections to solve the issue of static corrections. In order to solve the issue of static corrections in complex area,it should first build up near-surface model; then, using model-constraint refraction static correction to solve the issue of long-wavelength static correction; the following is to use refraction residual static correction to solve the issue of mid-to-short wavelength static correction; and finally using frequency-shared static correction to solve the issue of residual static correction. The practical data processing showed that the set of approaches can achieve good results.