| Application of Wavelet Decomposition to Removing Barometric and Borehole Water Tidal Response in Level |
| |
| 作者姓名： | Yan Rui |
| |
| 作者单位： | [1]China Earthquake Networks Center, Beijing 100045, China [2]Institute of Earthquake Science, Beijing 100036, China [3]Institute of Geophysics, China Earthquake Administration, Beijing 100081, China |
| |
| 基金项目： | The research was jointly supported by National Nature Science Foundation of China （40374019） and the research subject entitled ＂Research on the Digital Data Analysis and Application of Underground Fluid＂ under the l lth Five-Year Program of China Earthquake Administration （2006BAC01B02-03-02 ）. |
| |
| 摘 要： |
|
| 关 键 词： | 小波分解 最小平方法 地球潮汐系数 大气压力系数 |
| 收稿时间： | 2006-08-02 |
| 修稿时间： | 2007-04-29 |
Application of Wavelet Decomposition to Removing Barometric and Tidal Response in Borehole Water Level |
| |
| Yan Rui.Application of Wavelet Decomposition to Removing Barometric and Borehole Water Tidal Response in Level[J].Earthquake Research in China,2007,21(4):455-462. |
| |
| Authors: | Yan Rui |
| |
| Institution: | China Earthquake Networks Center, Beijing 100045, China; Institute of Earthquake Science, Beijing 100036, China; |
| |
| Abstract: | Wavelet decomposition is used to analyze barometric fluctuation and earth tidal response in borehole water level changes. We apply wavelet analysis method to the decomposition of barometric fluctuation and earth tidal response into several temporal series in different frequency ranges. Barometric and tidal coefficients in different frequency ranges are computed with least squares method to remove barometric and tidal response. Comparing this method with general linear regression analysis method, we find wavelet analysis method can efficiently remove barometric and earth tidal response in borehole water level. Wavelet analysis method is based on wave theory and vibration theories. It not only considers the frequency characteristic of the observed data but also the temporal characteristic, and it can get barometric and tidal coefficients in different frequency ranges. This method has definite physical meaning. |
| |
| Keywords: | Wavelet decomposition Least squares method Earth-tide coefficients Barometric coefficients |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《中国地震研究》浏览原始摘要信息 |
| 点击此处可从《中国地震研究》下载免费的PDF全文 |
