基于小波分析的河北省及邻区流动重力场时空动态变化分析

Analysis of Spatio-temporal Dynamics of Gravity Field in Hebei Province and Its Adjacent Areas Based on Wavelet Analysis

摘要:

搜集河北省及其邻近地区2010~2014年8期流动重力观测数据和周围绝对重力观测数据，利用小波多尺度分解方法获取河北及邻近区域（110°~120°E，36°~42°N）范围内不同尺度、不同场源深度下的分解结果，并结合该时间段内震例，通过对多期实验结果进行分析，对研究区内的重力变化情况及异常特征有更为清晰的认识，其结论可为河北省及邻近地区后续震情分析、研判提供一定参考。

Abstract:

We collected the gravity observation data of Hebei Province and its neighboring regions(110°~120°E,36°~42°N) from 2010 to 2014,and used multi-scale wavelet decomposition to get data at different scales and depth. Combined with the case of earthquakes in this period,we have a clearer understanding of the gravity changes and abnormal characteristics in the study area. The conclusions can provide some reference for the subsequent seismic situation analysis and judgment in Hebei Province and its neighboring regions.