黑龙江省FHD-2质子矢量磁力仪运行质量分析

Analysis of the operation quality of FHD-2 proton vector magnetometer in Heilongjiang Province

选取黑龙江省哈尔滨、望奎、通河地磁台站FHD-2质子矢量磁力仪数据记录,基于数据连续率和完整率、背景噪声评价、垂直分量日变化空间相关分析指标,对观测数据质量进行整体评估,结果发现:因仪器使用年限过长,FHD-2质子磁力仪故障率较高,运行连续率下降;受台站周边发展建设的影响,地磁观测数据质量逐年下降。基于质子磁力仪特性,对地磁观测数据进行温差分析,发现观测数据质量受研究区季节性温度变化影响较大。

The quality of the data records of the FHD-2 proton vector magnetometer at Harbin,Wangkui,and Tonghe geomagnetic stations in Heilongjiang Province was evaluated based on the data continuity rate and integrity rate,background noise evaluation,and the spatial correlation analysis indexesof the vertical component diurnal variation.Affected by the development and construction around the station,the quality of geomagnetic observation data is decreasing year by year.Based on the characteristics of the proton magnetometer,the temperature difference analysis of the geomagnetic observation data shows that the quality of the observation data is greatly affected by the seasonal temperature change in the study area.