浅析闰秒对地震勘探的影响

The impact of leap seconds on seismic acquisition

为了满足地震勘探精度对地震仪器一致性的要求,GPS授时技术被引入地震勘探领域。广泛存在于GPS授时中的闰秒更新,对各行各业和地震勘探工作都存在一定的影响。本文基于2016年12月31日新一轮的闰秒更新,对东方地球物理公司正在施工中的某海外城区过渡带项目产生的影响,并就此浅析闰秒对地震勘探的影响,以提高野外技术人员对GPS授时原理和闰秒影响的认识,避免遇到闰秒更新时出现盲目的恐慌或者由于处理不当造成资料废炮。

In order to meet the consistency requirements ofseismic data acquisitionaccuracyand seismic instruments,GPS timing technology has been introduced into the seismic acquisition,however,the leap second update,which exists widely in GPS timing,has a certain impact on the daily life of all walks of life including seismic acquisition work.Based on the new leap second update on December 31,2016,this paper examines the impact of an ongoing transitional zone project of BGP,through analyzing the impact of leap seconds in seismic acquisition to improve the knowledge of crew technicians on the GPS timing principle and the impact to seismic acquisition to avoid blind panic to the update of leap seconds or caused waste void shooting due to improper handling.