摘要
分析地震前兆观测资料是地震预测研究的核心,通过对大量的前兆资料的研究,发现利用小波多分辨分析对于前兆资料有着很强的处理功能。利用该方法对1980年以来的青藏高原东北部地区地震前兆观测资料进行处理和分析,初步得出了地球物理场(形变、流体、地温场等)的阶段性转折变化一般发生在数年强震活动组前的结论。
Analysis on the phenomena of the digital earthquake precursory data is the core of earthquake prediction, the digital earthquake predication data show that wavelet multiresolution analysis has very strong capabilities on it. The data of wavelet multiresolution since 1980 in Qinghai - Xizang plateau are analyzed. It is concluded that the varieties of geophysical observation （such as deformation, underground fluid, the field of ground temperature,etc. ） often appear before the cluster of strong earthquakes.
出处
《高原地震》
2008年第1期14-21,共8页
Plateau Earthquake Research
基金
地震科学联合基金青年基金课题(C08072)
青海地震科学基金(2007A01)资助
关键词
小波分析
前兆异常
青藏高原
地球物理场
Wavelet analysis
Precursory anomaly
Qinghai- Xizang plateau
Geophysical field
