地震地磁观测与研究2016,Vol.37Issue(4):88-92,5.DOI:10.3969/j.issn.1003-3246.2016.04.016
新疆质子磁力仪观测资料分析
Preliminary analysis of proton magnetometer data in Xinjiang region
摘要
Abstract
Using FHD-2B proton magnetometer data of Xinjiang region, the midnight mean, magnetically quiet day, Fourier spectral analysis of every station are studied. The results of analysis show that the mean value of annual variation ratios of regional magnetic ifeld intensity in Xinjiang from the year 2009 to 2015 is larger than that in 1991—2007. The main reason comes from amplitude increases of the 24 h, 12 h harmonic wave. Controlled by latitude, the diurnal peak valley values exist amplitude difference around the magnetic stations. The difference of peak and valley values at Wushi Geomagnetic station is larger than those at Wenquan and Karamay Stations. This type of difference is little in winter and large in summer. Among the geomagnetic diurnal variation harmonics, the waveform of 24 h, 12 h of harmonic are similar, of a peak and a valley. While the waveform of 8 h, 6 h of harmonics are of two peaks and two valleys. The amplitudes of four type harmonics, November, December, January and February, are close. The differences of other months increase.关键词
质子磁力仪/地磁场变化/子夜均值/磁静日/傅里叶谱Key words
proton magnetometer/geomagnetic field change/midnight mean/magnetically quiet day/Fourier spectrum引用本文复制引用
邹广,牛中华,杨福喜,陈大柱,高守全,赵刚..新疆质子磁力仪观测资料分析[J].地震地磁观测与研究,2016,37(4):88-92,5.基金项目
新疆地磁场磁暴分布特征及日变化异常与地震关系分析(201413)资助 ()