Wenchuan earthquake: Brightness temperature changes from satellite infrared information |
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Authors: | YuanSheng Zhang Xiao Guo MeiJiao Zhong WenRong Shen Wen Li Bin He |
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Affiliation: | 1 Lanzhou Institute of Seismology, China Earthquake Administration, Lanzhou 730000, China; 2 Lanzhou Base of Institute of Earthquake Prediction, China Earthquake Administration, Lanzhou 730000, China |
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Abstract: | By using an alternative processing method for satellite infrared remote sensing data and adopting the China Geostationary Mete-orological Satellite (FY-2C) infrared remote sensing brightness temperature data, we studied the great 2008 Wenchuan Ms8.0 earthquake. Results indicate the obvious characteristic period and amplitude, and distribution of thermal infrared anomalies before the Wenchuan earthquake. And we discussed the mechanism of the observed pre-earthquake thermal anomalies. The characteristics of observed thermal infrared anomalies are easy to be recognized and applied, and could provide a criterion for thermal anomalies of earthquakes. |
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Keywords: | Wenchuan Ms8.0 earthquake Geostationary Meteorological Satellite infrared remote sensing brightness temperature change |
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