2010年西藏聂荣MS5.7和MS5.5地震前后热红外异常分析

Abstract

Abstract: Using thermal infrared Brightness temperature (TBB) and Outgoing long-wave radiation (OLR) data of China FY-2E meteorological satellite, the anomalies of thermal infrared radiation of the 2010 Nierong M_S5.7 and M_S5.5 Earthquakes in Tibet were studied. This study removed the cloud information of data based on threshold method, calculated the wavelet spectrum change of TBB and OLR based on the Morlet wave method and discussed the regularities and characteristics of its anomalous changes before and after the earthquakes. Obvious TBB and OLR anomalies appear before the Nierong earthquakes. Moreover, durations and locations of the anomalies are similar. However, the abnormal amplitude of TBB is higher than that of OLR. It is significant and valuable in the research of earthquake in this region using the thermal infrared remote sensing data.

Key words: Thermal infrared radiation, Brightness Temperature, Outgoing long-wave radiation, The 2010 Nierong earthquake in Tibet

CLC Number:

P315.7

LU Xian,MENG Qing-yan,GU Xing-fa,ZHANG Xiao-dong, JIANG Hai-kun,XIE Tao. Anomalies of Thermal Infrared Radiation during the 2010 Nierong M_S5.7/M_S5.5 Earthquakes in Tibet[J]. EARTHQUAKE, 2017, 37(4): 144-151.

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Anomalies of Thermal Infrared Radiation during the 2010 Nierong M_S5.7/M_S5.5 Earthquakes in Tibet

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Anomalies of Thermal Infrared Radiation during the 2010 Nierong MS5.7/MS5.5 Earthquakes in Tibet

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Anomalies of Thermal Infrared Radiation during the 2010 Nierong M_S5.7/M_S5.5 Earthquakes in Tibet