高光谱气体背景场特征及震情跟踪应用前景
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摘要
基于2004—2017年华北地区高光谱数据,计算CH_4、CO、O3总量背景场,发现不同气体在时间尺度上受温度、湿度、高空辐射等影响有较明显的周期性特征,在空间尺度上CH_4、CO总量平原高于山区,O3总体呈现随纬度升高而降低的特征;利用RST算法对华北地区5.0级以上地震进行震例总结发现,震前62.5%的地震震中附近出现气体高值异常,异常气体主要为CH_4、CO,而O3异常不明显。研究结果表明,RST算法对高光谱气体CH_4、CO进行异常提取可作为地震预报的辅助依据,服务于震情跟踪判定。
Based on hyperspectral data of North China in 2004—2017,we calculate the total background field of CH_4,CO,O3.They have obvious periodic characteristics on the time scale,which are mainly affected by temperature,humidity,high-altitude radiation,etc.On the spatial scale,the total amount of CH_4 and CO of plain is higher than that of the mountainous area,and O3 generally shows the characteristics of decreasing with increasing latitude.It was found that 62.5% earthquake had a high value anomaly near the epicenter,the abnormal gases are mainly CH_4 and CO,and the O3 anomaly is not obvious by summarization of earthquake cases of MS5.0 earthquakes in North China on RST algorithm.It is considered that the abnormal extraction of hyperspectral gas CH_4 and CO by RST algorithm can be used as an auxiliary basis for earthquake prediction,and serve the earthquake tracking decision.
Based on hyperspectral data of North China in 2004—2017,we calculate the total background field of CH_4,CO,O3.They have obvious periodic characteristics on the time scale,which are mainly affected by temperature,humidity,high-altitude radiation,etc.On the spatial scale,the total amount of CH_4 and CO of plain is higher than that of the mountainous area,and O3 generally shows the characteristics of decreasing with increasing latitude.It was found that 62.5% earthquake had a high value anomaly near the epicenter,the abnormal gases are mainly CH_4 and CO,and the O3 anomaly is not obvious by summarization of earthquake cases of MS5.0 earthquakes in North China on RST algorithm.It is considered that the abnormal extraction of hyperspectral gas CH_4 and CO by RST algorithm can be used as an auxiliary basis for earthquake prediction,and serve the earthquake tracking decision.
引文
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[15]崔月菊,杜建国,陈志,等.2010年玉树MS7.1地震前后大气物理化学遥感信息[J].地球科学进展,2011,26(7):787-794.
[16]崔月菊,杜建国,周晓成,等.墨西哥下加利福尼亚MW7.2地震前后CO遥感地球化学异常[J].矿物岩石地球化学通报,2011,30(4):458-464.
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[18]Ganguly D N.Variation in atmospheric ozone concentration following strong earthquakes[J].International Journal of Remote Sensing,2009,30(2):349-356.
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[20]孙玉涛,崔月菊,刘永梅,等.苏门答腊两次M>8.0地震前后CO和O3卫星遥感气体地球化学异常与地面验证[J].地震研究,2014,37(2):222-227.
[21]Cui Y,Du J,Zhang D,et al.Anomalies of total column CO and O3associated with great earthquakes in recent years[J].Natural Hazards and Earth System Sciences,2013,13(10):2513-2519.
[22]陈立泽,申旭辉,王辉,等.我国高分辨率遥感技术在地震研究中的应用[J].地震学报,2016,38(3):333-344.
[23]Ouzounov D,Liu D F,Chunli K,et al.Outgoing long wave radiation variability from IR satellite data prior to major earthquakes[J].Tectonophysics,2007,43(1/4):211-220.
[24]孙玉涛,郭正府,成智慧,等.2002~2005年长白山火山气体的释放特征与地球化学异常研究---多源高光谱遥感证据[J].岩石学报,2017,33(1):221-230.
[25]孙珂.基于卫星遥感反演的地震热红外算法及特征研究[D].北京:中国地震局地质研究所,2017.
[2]汪成民,李宣瑚.我国断层气测量在地震科学研究中的应用现状[J].中国地震,1991,7(2):19-30.
[3]强祖基,杜乐天.地球排气与森林火灾和地震活动[J].地学前缘,2001,8(1):235-245.
[4]Tronin A A.Remote sensing and earthquakes:a review[J].Physics and Chemistry of the Earth,Parts A/B/C,2006,31(4/9):138-142.
[5]崔月菊.大地震前后CO、O3、和CH4遥感地球化学异常特征[D].北京:中国地质大学(北京),2014.
[6]King C Y,Zhang W,Zhang Z C.Earthquake-induced groundwater and gas changes[J].Pure and Applied Geophysics,2006,163(4):633-645.
[7]Ghosh D,Deb A,Sengupta R.Anomalous radon emission as precursor of earthquake[J].Journal of Applied Geophysics,2009,69(2):67-81.
[8]Voltattorni N,Quattrocchi F,Gasparini A,et al.Soil gas degassing during the 2009L’Aquila earthquake:study of the seismotectonic and fluid geochemistry relation[J].Italian Journal of Geosciences,2012,131(3):440-447.
[9]陈彧,徐瑞松,蔡睿,等.遥感技术在地震研究中的应用进展[J].地球物理学进展,2008,23(4):1273-1281.
[10]Singh R P,Kumar S J,Zlotnicki J,et al.Satellite detection of carbon monoxide emission prior to the Gujarat earthquake of 26January2001[J].Applied Geochemistry,2010,25(4):580-585.
[11]Tronin A A,Hayakawa M,Molchanov O A.Thermal IR satellite data application for earthquake research in Japan and China[J].Journal of Geodynamics,2002,33(4/5):519-534.
[12]Singh R P,Mehdi W,Gautam R,et al.Precursory signals using satellite and ground data associated with the Wenchuan Earthquake of12May 2008[J].International Journal of Remote Sensing,2010,31(13):3341-3354.
[13]耿飞,孟庆岩,魏鸣,等.2013年芦山MS7.0地震前后甲烷排放时空演化分析[J].地震学报,2017,39(3):386-394.
[14]崔月菊.地震有关的卫星高光谱气体地球化学信息[D].北京:中国地震局地震预测研究所,2011.
[15]崔月菊,杜建国,陈志,等.2010年玉树MS7.1地震前后大气物理化学遥感信息[J].地球科学进展,2011,26(7):787-794.
[16]崔月菊,杜建国,周晓成,等.墨西哥下加利福尼亚MW7.2地震前后CO遥感地球化学异常[J].矿物岩石地球化学通报,2011,30(4):458-464.
[17]崔月菊,杜建国,张德会,等.应用于地震预测的遥感气体地球化学[J].地球科学进展,2012,27(10):1173-1177.
[18]Ganguly D N.Variation in atmospheric ozone concentration following strong earthquakes[J].International Journal of Remote Sensing,2009,30(2):349-356.
[19]Cui Y,Ouzounov D,Hatzopoulos N,et al.Satellite observation of CH4and CO anomalies associated with the Wenchuan MS8.0and Lushan MS7.0earthquakes in China[J].Chemical Geology,2017,469:185-191.
[20]孙玉涛,崔月菊,刘永梅,等.苏门答腊两次M>8.0地震前后CO和O3卫星遥感气体地球化学异常与地面验证[J].地震研究,2014,37(2):222-227.
[21]Cui Y,Du J,Zhang D,et al.Anomalies of total column CO and O3associated with great earthquakes in recent years[J].Natural Hazards and Earth System Sciences,2013,13(10):2513-2519.
[22]陈立泽,申旭辉,王辉,等.我国高分辨率遥感技术在地震研究中的应用[J].地震学报,2016,38(3):333-344.
[23]Ouzounov D,Liu D F,Chunli K,et al.Outgoing long wave radiation variability from IR satellite data prior to major earthquakes[J].Tectonophysics,2007,43(1/4):211-220.
[24]孙玉涛,郭正府,成智慧,等.2002~2005年长白山火山气体的释放特征与地球化学异常研究---多源高光谱遥感证据[J].岩石学报,2017,33(1):221-230.
[25]孙珂.基于卫星遥感反演的地震热红外算法及特征研究[D].北京:中国地震局地质研究所,2017.
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