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《Acta Scientiarum Naturalium Universitatis Pekinensis》 2009-06
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Exploration of Microwave Remote Sensing Observation about Earthquake Precursors

LUO Xianhan Department of Astronomy,School Physics,Peking University,Beijing 100871  
Through analysis of several strong earthquakes in Haicheng,Tangshan and Wenchuan,the author points out that the uncertainty of earthquake forcast lies in the complexity of precursors which are difficult to detect and identify.Single small earthquake precursor does not provide universal forecast meaning.However,comprehensive analysis on a variety of precursors may be of great significance for the short-term earthquake forecast.Further analysis demonstrates,the selection of observation instruments can be more important.Compared with common ground observation for obtaining estimative information of earthquake precursors,the space remote sensing observation for obtaining collateral information of the seismogenic zone,and microwave remote sensing observation in particular,provides many advantages,including big visual field,quick prescription,strong synchronism and working in all weather.Under the condition of using bean switching method,the microwave remote sensing observation can discover the change of microwave radiation from the seismogenic zone with very high sensitivity.Such observation may provide more important meaning for short-term earthquake forecast.Finally,based on the matter information theory,the feasibility and rationality of microwave remote sensing observation were discussed.
【CateGory Index】: P315.72
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