基于逐像元方法的2010年花莲地震前热异常分析
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摘要
使用NCEP提供的气象同化资料,基于逐像元方法分析了2010年2月7日花莲地震前后两个月的地表等压面温度时空变化特征。发现:震前5天在菲律宾板块向欧亚板块移动的前端出现了孤立分布的高温区域,且随着地震的临近,向冲绳海槽和琉球海沟之间的海域移动,增温幅度最高达6℃。此结果与现有的地震热异常时空分布规律一致,表明逐像元方法不仅适用于地形起伏变化较大的内陆地震,在有海岛分布的海洋地震也同样适用。
Using meteorological assimilation data provided by NECP,we analyzed the temporal-spatial variation characteristics of temperature on isobaric surface in two months before and after Hualian M6.3 earthquake on Feb.7 in 2010 basing on per-pixel method. The result showed that there appeared isolated distribution of high-temperature zone in the front-end of Philippine Plate moving to Eurasian Plate in five days before the earthquake. With approaching of Hualian M6.3 earthquake,the temperature anomaly gradually moved to the sea area between Okinawa Trough and Ryukyu Trench,and the greatest warming amplitude is as high as 6℃,which coincided with temporal-spatial distribution of thermal anomaly of other earthquakes. It indicated the per-pixel method applied not only to inland earthquakes with great topographic relief variation but also to the oceanic earthquake with island distribution.
Using meteorological assimilation data provided by NECP,we analyzed the temporal-spatial variation characteristics of temperature on isobaric surface in two months before and after Hualian M6.3 earthquake on Feb.7 in 2010 basing on per-pixel method. The result showed that there appeared isolated distribution of high-temperature zone in the front-end of Philippine Plate moving to Eurasian Plate in five days before the earthquake. With approaching of Hualian M6.3 earthquake,the temperature anomaly gradually moved to the sea area between Okinawa Trough and Ryukyu Trench,and the greatest warming amplitude is as high as 6℃,which coincided with temporal-spatial distribution of thermal anomaly of other earthquakes. It indicated the per-pixel method applied not only to inland earthquakes with great topographic relief variation but also to the oceanic earthquake with island distribution.
引文
陈顺云,马瑾,刘培洵,等.2004.中国地表亮度温度年变基准场[J].地震地质,26(3):528-538.
邓志辉,陈梅花,王煜.2005.卫星热遥感技术在地震预测中的应用研究进展[J].大地测量与地球动力学,25(2):46-51.
顾菊开,张俊伟,马骏康.2003.中、强震前的热异常现象[J].地震研究,2:.
李金平,吴立新,刘善军,等.2008.强震前热红外异常识别方法与定量分析模型[J].中国矿业大学学报,37(6):799-813.
刘德富,彭克银,刘维贺,等.1999.地震有“热征兆”[J].地震学报,12(6):710-715.
刘培洵,刘力强,陈顺云,等.2004.从红外遥感图像提取地下热信息的透热指数法[J].地震地质,26(3):520-523.
马未宇.2008.汶川地震前的NCEP异常现象[J].科技导报,26(10):36-38.
强祖基,赁常恭.1998.卫星热红外图象亮温异常短临震兆[J].中国科学(D辑:地球科学),28(6):564-573.
秦凯,王斌,郭广猛,等.2008.使用NCEP数据分析新疆于田地震前异常增温[J].吉林大学学报(地球科学版),6:110-116.
秦凯,吴立新,马未宇.等.2011.基于NCEP数据的地震热红外遥感逐像元分析方法[J].遥感信息,(4):18-22.
王亚丽,陈桂华,康春丽,等.2008.利用小波包分析进行地震相关热红外辐射异常信息检测[J].地球物理学进展,23(2):368374.
吴立新,刘善军,吴育华.2006.遥感—岩石力学引论——岩石受力灾变的红外遥感[M].北京:科学出版社.
徐秀登,强祖基,赁常恭.1990.突发性地面增温与临震前兆[J].地震地质,13(2):243-249.
尤传侠.1983.道孚地震的热异常[J].地震研究,6(S1):526-532.
钟美娇,张元生.2007.2005年10月8日巴基斯坦7.8级地震热红外异常[J].西北地震学报,29(2):137-140.
Gorny V I,Salman A G,Tronin,A A,et al.1988.The earth outgoing IRradiation as an indicator of seismic activity[J].Proc Acad SciUSSR,30(1):6769.
Liu Shanjun,Yang Dongping,Wu Lixin,et al.2007.On the Features andMechanism of Satellite Infrared Anomaly before Earthquakes in Tai-wan Region[J].IEEE International Geoscience and Remote SensingSymposium2007,Spain.
Mil'kis M R.1986.Meteorological precursors of earthquakes[J].Iz-vestiya,Earth Physics,22:195204.
Saraf A K,Choudhury S.2005.NOAA-AVHRR detects thermal anomalyassociated with the26January2001Bhuj earthquake,Gujrat,India[J].International Journal of Remote Sensing,26:1065-1073.
Tronin A A.1996.Satellite thermal survey—a new tool for the studies ofseismoactive regions[J].International Journal of Remote Sensing,17(8):14391455.
邓志辉,陈梅花,王煜.2005.卫星热遥感技术在地震预测中的应用研究进展[J].大地测量与地球动力学,25(2):46-51.
顾菊开,张俊伟,马骏康.2003.中、强震前的热异常现象[J].地震研究,2:.
李金平,吴立新,刘善军,等.2008.强震前热红外异常识别方法与定量分析模型[J].中国矿业大学学报,37(6):799-813.
刘德富,彭克银,刘维贺,等.1999.地震有“热征兆”[J].地震学报,12(6):710-715.
刘培洵,刘力强,陈顺云,等.2004.从红外遥感图像提取地下热信息的透热指数法[J].地震地质,26(3):520-523.
马未宇.2008.汶川地震前的NCEP异常现象[J].科技导报,26(10):36-38.
强祖基,赁常恭.1998.卫星热红外图象亮温异常短临震兆[J].中国科学(D辑:地球科学),28(6):564-573.
秦凯,王斌,郭广猛,等.2008.使用NCEP数据分析新疆于田地震前异常增温[J].吉林大学学报(地球科学版),6:110-116.
秦凯,吴立新,马未宇.等.2011.基于NCEP数据的地震热红外遥感逐像元分析方法[J].遥感信息,(4):18-22.
王亚丽,陈桂华,康春丽,等.2008.利用小波包分析进行地震相关热红外辐射异常信息检测[J].地球物理学进展,23(2):368374.
吴立新,刘善军,吴育华.2006.遥感—岩石力学引论——岩石受力灾变的红外遥感[M].北京:科学出版社.
徐秀登,强祖基,赁常恭.1990.突发性地面增温与临震前兆[J].地震地质,13(2):243-249.
尤传侠.1983.道孚地震的热异常[J].地震研究,6(S1):526-532.
钟美娇,张元生.2007.2005年10月8日巴基斯坦7.8级地震热红外异常[J].西北地震学报,29(2):137-140.
Gorny V I,Salman A G,Tronin,A A,et al.1988.The earth outgoing IRradiation as an indicator of seismic activity[J].Proc Acad SciUSSR,30(1):6769.
Liu Shanjun,Yang Dongping,Wu Lixin,et al.2007.On the Features andMechanism of Satellite Infrared Anomaly before Earthquakes in Tai-wan Region[J].IEEE International Geoscience and Remote SensingSymposium2007,Spain.
Mil'kis M R.1986.Meteorological precursors of earthquakes[J].Iz-vestiya,Earth Physics,22:195204.
Saraf A K,Choudhury S.2005.NOAA-AVHRR detects thermal anomalyassociated with the26January2001Bhuj earthquake,Gujrat,India[J].International Journal of Remote Sensing,26:1065-1073.
Tronin A A.1996.Satellite thermal survey—a new tool for the studies ofseismoactive regions[J].International Journal of Remote Sensing,17(8):14391455.
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