| 甘肃祁连山大容量气枪主动源最大探测范围 |
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| 引用本文： | 秦满忠,刘旭宙,邹锐,张元生,郭晓,魏从信,王亚红,孙点峰.甘肃祁连山大容量气枪主动源最大探测范围[J].西北地震学报,2017,39(6):1070-1075. |
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| 作者姓名： | 秦满忠 刘旭宙 邹锐 张元生 郭晓 魏从信 王亚红 孙点峰 |
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| 作者单位： | 中国地震局兰州地震研究所, 甘肃 兰州 730000;中国地震局地震预测研究所兰州科技创新基地, 甘肃 兰州 730000,中国地震局兰州地震研究所, 甘肃 兰州 730000;中国地震局地震预测研究所兰州科技创新基地, 甘肃 兰州 730000,中国地震局兰州地震研究所, 甘肃 兰州 730000;中国地震局地震预测研究所兰州科技创新基地, 甘肃 兰州 730000,中国地震局兰州地震研究所, 甘肃 兰州 730000;中国地震局地震预测研究所兰州科技创新基地, 甘肃 兰州 730000,中国地震局兰州地震研究所, 甘肃 兰州 730000;中国地震局地震预测研究所兰州科技创新基地, 甘肃 兰州 730000,中国地震局兰州地震研究所, 甘肃 兰州 730000;中国地震局地震预测研究所兰州科技创新基地, 甘肃 兰州 730000,中国地震局兰州地震研究所, 甘肃 兰州 730000;中国地震局地震预测研究所兰州科技创新基地, 甘肃 兰州 730000,中国地震局兰州地震研究所, 甘肃 兰州 730000;中国地震局地震预测研究所兰州科技创新基地, 甘肃 兰州 730000 |
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| 基金项目： | 国家自然科学基金（41504050，41574044） |
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| 摘 要： | 叠加甘肃和青海数字测震台网记录到的甘肃祁连山大容量气枪连续激发的大量观测波形。结果显示,单次激发的气枪震源信号最远可以在距气枪震源304km的古浪台(GLT)识别,通过110次叠加的信号最远可以追踪到412km的安西台(AXX),4 600次叠加的信号最远可以在距气枪震源677km的乌图美仁台站(WTM)观测到。研究结果可为提高甘肃祁连山大容量气枪主动源观测系统的监测能力和微弱信号的提取能力,探讨祁连山区域内部介质速度变化等工作提供重要的科学意义。
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| 关 键 词： | 甘肃祁连山大容量气枪主动源 最大探测范围 叠加 |
| 收稿时间： | 2017/2/22 0:00:00 |
Maximum Detective Range of the Large-volume Airgun ActiveSource in Qilian Mountains, Gansu Province |
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| QIN Manzhong,LIU Xuzhou,ZOU Rui,ZHANG Yuansheng,GUO Xiao,WEI Congxin,WANG Yahong and SUN Dianfeng.Maximum Detective Range of the Large-volume Airgun ActiveSource in Qilian Mountains, Gansu Province[J].Northwestern Seismological Journal,2017,39(6):1070-1075. |
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| Authors: | QIN Manzhong LIU Xuzhou ZOU Rui ZHANG Yuansheng GUO Xiao WEI Congxin WANG Yahong and SUN Dianfeng |
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| Institution: | Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, Gansu, China;Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 73000, Gansu, China,Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, Gansu, China;Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 73000, Gansu, China,Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, Gansu, China;Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 73000, Gansu, China,Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, Gansu, China;Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 73000, Gansu, China,Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, Gansu, China;Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 73000, Gansu, China,Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, Gansu, China;Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 73000, Gansu, China,Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, Gansu, China;Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 73000, Gansu, China and Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, Gansu, China;Lanzhou Base of Institute of Earthquake Science, China Earthquake Administration, Lanzhou 73000, Gansu, China |
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| Abstract: | Numerous waveform data, which continuously vary owing to excitation by the large-volume, airgun active source in Qilian Mountains, Gansu Province and are recorded by the Gansu and Qinghai digital seismic network, are stacked in this study. The results reveal that after single excitation, the airgun source signals could be detected by the GLT station located 304 km away from the source; the signals stacked 110 times could be detected by the AXX station located 412 km away from the source; and the signals stacked 4,600 times could be detected by the WTM station located 677 km away from the source. The findings of this study are of great scientific importance for improving the monitoring capability of the large-volume, airgun active source observation system in Qilian Mountains, extracting weak signals, and discussing the velocity change of internal medium in Qilian Mountains. |
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| Keywords: | large-volume airgun active source in Qilian Mountains Gansu Province maximum detective range stack |
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