摘要
选取福建省地下流体3个测点的水位资料,以提取M_2波幅度为例,根据所选取采样数据长度的不同分别对提取出的M_2波幅度进行比较。结果表明,M_2波幅度随农历时间的变化而改变,在小潮时几乎接近于零,且不同长度的采样数据的对比证明,以月尺度数据求出的M_2波幅度最佳。
Three measuring points of the underground fluid level information are selected in Fujian Province. Taking the M2 wave amplitude extracting as a example, according to the selected sample data of different lengths, the M2 wave amplitude extracted are compared. It shows that M2 wave amplitude changes with lunar time. In a small tide, the M2 wave amplitude is almost close to zero. After the different lengths of sampling data for comparison, the M2 wave amplitude exacted from month scale is best.
出处
《地震地磁观测与研究》
2012年第5期146-151,共6页
Seismological and Geomagnetic Observation and Research
基金
中国地震局交流访问学习(中震人函[2010]113号)
国家自然科学基金项目(41040036)
关键词
地下水位
不同采样数据长度
频谱分析M2波幅度
the underground fluid level, the different lengths of sampling data, spectruman alysis, the M2 wave amplitude
