青藏及华北阵列式区域大地电磁场标准观测网建设方法与实验

大地电磁参数标准网的建设需要大量第一手的观测资料,观测资料的质量直接决定了标准网的可靠性。本文分析了大地电磁测深仪器设备、资料采集与处理技术,确定了青藏及华北阵列式区域大地电磁场标准观测网的建设方法;在此基础上,在山东菏泽地区对11535和11635号标准点进行了野外观测试验,对采集的宽频及长周期数据进行了深入处理,形成的对辅助测站和中心测站布置、数据采集时间、资料处理手段和远参考测站布设等要求,将指导青藏及华北阵列式区域大地电磁场标准网的建设,并对中国大陆其他区域大地电磁场标准网建设具有一定参考意义。

Construction Methods and Experiments for Magnetotelluric Standard Network at the Tibetan Plateau and North China

A large amount of first-hand observation data are needed to construct magnetotelluric(MT) standard network, and the reliability of the standard network directly relies on the quality of MT data. This paper established the construction methods for MT standard network at the Tibetan plateau and North China after analyzing the MT equipment, data acquisition and processing. Field observation and experiment was conducted at the standard stations (11535 and 11635) at the Heze district of Shangdong province. The data of broad-band and long period MT data was processed in detailed. The techniques and data on methods central and accessory station deployment, data acquisition time, processing and remote reference, which were obtained from the field experiments, will be used to instruct the construction of magnetotelluric (MT) standard network in the Tibetan Plateau and North China and will provide technical support to construct MT standard network at other parts of China.