Title :
Importance of lithosphere-coversphere-atmosphere coupling to earthquake anomaly recognition
Author :
Wu, Lixin ; Qin, Kai ; Liu, Shanjun ; De Santis, Angelo ; Cianchini, Gianfranco
Author_Institution :
Beijing Normal Univ., Beijing, China
Abstract :
The GEOSS under construction is providing space-,aero-,ground/sea-based multiple observations on planet Earth for the seismogenic process monitoring and earthquake precaution. The stress enhancement and energy accumulation in seismic activity area change locally the physical parameters of lithosphere with the developing of a series of effects that can comprise most of the following ones: initial cracks, the fracturing of rockmass, the changing of electromagnetic properties, the decreasing of dielectric constant, the re-activation of P-holes, the leaking of pore-gas, and the rise of water-level. The physical states of coversphere and atmosphere are to be affected due to the lithosphere-coversphere-atmosphere (LCA) coupling, and the signals from the underground, surface, and atmosphere to satellites are to be changed with parameter anomaly. We suggested that the LCA coupling is important for understanding GEOSS observations, especially for earthquake anomaly recognition (EAR). Using deviation-time-space-thermal (DTS-T) method for EAR, three recent major earthquakes (2009 Italy L´Aquila earthquake, 2010 China Yushu earthquake and 2010-2011 New Zealand earthquake sequence) are taken as typical cases for analysis to the multi-parameters anomalies, preceding the shocking, with quasi-synchronism and geo-consistency. The specific LCA coupling effects related with the earthquakes are also discussed in brief.
Keywords :
earthquakes; faulting; seismology; China Yushu earthquake; EAR; Earth observation; GEOSS observations; Italy L´Aquila earthquake; New Zealand earthquake sequence; P-holes; cracks; deviation-time-space-thermal method; dielectric constant; earthquake anomaly recognition; earthquake precaution; electromagnetic properties; energy accumulation; geo-consistency; lithosphere-coversphere-atmosphere coupling; multi-parameters anomalies; parameter anomaly; pore-gas; rockmass fracturing; seismic activity area; seismogenic process monitoring; stress enhancement; water-level; Couplings; Earthquakes; Electromagnetic heating; Land surface; Rocks; Satellites; Terrestrial atmosphere; GEOSS; earthquake anomaly recognition (EAR); lithosphere-coversphere-atmosphere (LCA) coupling; multiple parameters;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6350657