GIS-Based Study Earthquake Thermal Infrared

Earthquake as a rapid tectonic movement, its significant activities are especially destructive of human life have different degrees of harm. Earthquake predictability of sudden and difficult to make modern science and technology knowledge of the main stay for the earthquake after the earthquake data analysis, the previous series of important results have been achieved, but the whole process of seismic activity is still more difficult to depth. The evolution of earthquake preparation is to further understanding of the key laws of seismic activity. Earthquake earthquake thermal infrared process as an important precursor, the thermal infrared link with tectonic activity, is a seismic study new ideas. GIS technology is a powerful geographical data processing capabilities.Propose a complete process of thermal infrared-based GIS research program and the process of innovation and improvement in research methods.Paper is divided into six parts. The first part is introduction, a statement by the research background, respectively, reviewed the history of relevant research at home and abroad, researchers of different academic perspectives are reviewed, combined with GIS technology introduction and application of the significance of the topic to illustrate the value of,and brief technical methods used.The second part, the study of seismic macro-geographical areas and population discussion of the economy, combined with the regional geological setting and seismic structure to analyze the status of activities, demonstration chosen as the background field in North China since the earthquake in the region may be hazardous for the largest area, is typical, and later make a specific analysis of the macro background of earthquake cases bedding. The third part, the use of self-received NCEP/NOAA continuous data, research data, the daily number of specific processing to generate the process of reflecting thermal infrared images.The fourth part, through the use of popular geographic information system platform software, geographic information technology research in multi-source information under the compound, after the overlay to achieve a variety of information visualization.The fifth part, in combination with the historical seismic activity in North China based on the pattern calculated for a number of cycles the size of tectonic stress, in ZhouKou of recent earthquakes in the region Ms4.7 specific temporal and spatial variation of thermal infrared process analysis.The sixth part, according to analysis of the preceding example, in the complex multi-source geographic information obtained under the following result.This research has made major progress and innovation of the following results.(1)The highest frequency of earthquakes in North China as the background,with its recent earthquake cases occurred in the analysis as a specific example,the earthquake thermal infrared obtain new evidence of the process. Before and after the process, the thermal infrared images show that temperature changes before and after the earthquake for some time that the stress of continuous change cycle.The existence of the abnormal temperature increase significantly, this situation is a continuous process of evolution, not just a random phenomenon.(2)Improving methods of thermal infrared data reception and data processing to make real-time continuous data reception into the timing of treatment to achieve a batch.Using general GIS platform to achieve complex multi-source geographic information.(3)Temperature variation of thermal infrared analysis shows that fault activity, the radiation balance and seismic activity relationship exist between the three. Both ground and air surface exchange of energy, follow the law of conservation of energy, surface energy as long wave radiation out to receive solar radiation, in order to maintain energy balance. Fault-induced changes in surface thermal infrared radiation, it will break the radiation balance. To determine whether the fault earthquake activity is often a sign, it is possible to consider the radiation balance from the fault activity and earthquakes.(4)Tectonic earthquake occurred in the larger cycle of stress amplitude, is a continuous process of accumulation of energy in the macro to generate a precursor to the abnormal warming. Rock burst, the energy concentration adjust to reflect the seismic activity during the evolution of tectonic activity.(5)Abnormal temperature distribution area isotherms appear scattered over time, centralized, decentralized rule. Isotherm with a significant orthogonal faults along the fault zone, suture lines, and structural changes in the regional, gradient of the isotherms. Abnormal area and then adjust the temperature change in the area appear, disappear or expand the local area, after the inversion for the main aftershock epicentral area the size of the aftershocks may occur to determine the orientation of a guide. It can be calculated inversion energy accumulation zone of the length of the aftershock Axis.(6)Background of regional seismic and seismic field has a certain relevance and synchronization. Through the geographic information and thermal infrared information superimposed image database management, it achieve to query the thermal infrared anomaly real-time on a classification unit.Finally, the research direction of this another way to do the prospect of future development, mainly with the number of regions around the ongoing construction of the gradual introduction of conditional mass of GIS data, real-time dynamic earthquake thermal infrared process monitoring, to really play the value of the benefit of all mankind.