| 用高台宽频带数字资料研究气流扰动对地脉动的干扰影响 |
| |
| 引用本文： | 尹亮,尹志文,王必显,王亚红,孙点峰.用高台宽频带数字资料研究气流扰动对地脉动的干扰影响[J].西北地震学报,2016,38(S2):183-189. |
| |
| 作者姓名： | 尹亮 尹志文 王必显 王亚红 孙点峰 |
| |
| 作者单位： | 甘肃省地震局张掖中心地震台, 甘肃 张掖 734000,甘肃省地震局监测中心, 甘肃 兰州 730000,甘肃省地震局张掖中心地震台, 甘肃 张掖 734000,甘肃省地震局张掖中心地震台, 甘肃 张掖 734000,甘肃省地震局张掖中心地震台, 甘肃 张掖 734000 |
| |
| 基金项目： | 中国地震局兰州地震研究所地震科技发展基金野外站基金（201404） |
| |
| 摘 要： | 通过对高台宽频带数字资料在数次冷空气过程时段地脉动幅度及频谱变化的分析，在时间域和频率域上研究冷空气过程的干扰特征，发现冷空气过程时段，地脉动记录曲线会出现大周期扰动或抖动式畸变；随着冷空气过程开始到结束，0.001~0.005 Hz的频幅最大值出现较大变化，进程上具有上升、达到最大值、逐渐回复的特征，降温幅度最大则扰动幅度达到最高值。
|
| 关 键 词： | 气流 冷空气 地脉动 干扰 频谱分析 |
| 收稿时间： | 2016/3/10 0:00:00 |
Research on Influence by the Air Disturbance in Microtremor Recordings based on the Broad-band Digital Data of Gaotai Station |
| |
| YIN Liang,YIN Zhi-wen,WANG Bi-xian,WANG Ya-hong and SUN Dian-feng.Research on Influence by the Air Disturbance in Microtremor Recordings based on the Broad-band Digital Data of Gaotai Station[J].Northwestern Seismological Journal,2016,38(S2):183-189. |
| |
| Authors: | YIN Liang YIN Zhi-wen WANG Bi-xian WANG Ya-hong and SUN Dian-feng |
| |
| Institution: | Gaotai Seismic Station, Earthquake Administration of Gansu Province, Gaotai 734300, Gansu, China,Earthquake Administration of Gansu Province, Lanzhou 730000, Gansu, China,Gaotai Seismic Station, Earthquake Administration of Gansu Province, Gaotai 734300, Gansu, China,Gaotai Seismic Station, Earthquake Administration of Gansu Province, Gaotai 734300, Gansu, China and Gaotai Seismic Station, Earthquake Administration of Gansu Province, Gaotai 734300, Gansu, China |
| |
| Abstract: | Through many studies on the changes of the amplitude and the spectrum of microtremors in the period of cold air process in the digital broadband date from Gaotai. We also researches on the process of cold air disturbance to the microtremors in time-domain and frequency-domain. Then we discovered that in the process of cold air, the microtremors curve will be a big periodic perturbation or jitter distortion. the process with the cold air from start to finish, the 0.001~0.005 Hz amplitude-frequency value changed greatly,and the process had the characteristic of rapid increase-reach to maximum-dicrease then return to the normal, and the maximum disturbance data will happen at the time of maximum temperature decrease. |
| |
| Keywords: | air current cold air microtremor disturbance spectrum analysis |
|
| 点击此处可从《西北地震学报》浏览原始摘要信息 |
| 点击此处可从《西北地震学报》下载免费的PDF全文 |
|
