CAJ | 학술논문

通过对固原体应变与水位、气压等影响因素的相关分析，以及对M2波潮汐因子相对误差等参数的计算，结果显示体应变观测与水位变化长期存在高度反向相关，与气压短期存在高度正相关，且体应变随气压变化在时间上存在40分钟左右的滞后效应。并利用回归相关分析消除水位、气压影响，探讨了体应变与水位、气压相关系数以及响应系数在宁夏地区小震前的变化特点。
통과대고원체응변여수위、기압등영향인소적상관분석，이급대M2파조석인자상대오차등삼수적계산，결과현시체응변관측여수위변화장기존재고도반향상관，여기압단기존재고도정상관，차체응변수기압변화재시간상존재40분종좌우적체후효응。병이용회귀상관분석소제수위、기압영향，탐토료체응변여수위、기압상관계수이급향응계수재저하지구소진전적변화특점。
Based on the correlation analysis of volume strain with factors such as water level and atmospheric pressure in Guyuan Seismic Station, and calculation of some parameters such as relative error of M2 tidal factor, we obtain that volume strain observation is inversely related to water level changes for long-term and positively related to atmospheric pressure for short-term. Meantime, volume strain changed with the atmospheric pressure and existed 40 minutes lag. Then, eliminating factors of water level and atmospheric pressure by regression correlation analysis, we investigate variation of volume strain with water level, correlation coefficient of atmospheric pressure and response coefficient of atmospheric pressure before small earthquakes in Ningxia region.