摘要
分析研究了银川基准台重力非潮汐变化与气压的相关性,结果表明重力非潮汐变化与气压存在较好的负相关。利用两者间高度相关性,对重力潮汐变化、非潮汐变化进行了气压改正,改正前后重力潮汐参数的精度没有显著变化,非潮汐变化漂移稳定,为捕捉地震前兆异常提供了有力的帮助。
The analysis and study have been done on the correlatability between gravity non- tide change and air pressure, the results show that there is relatively good negative correlation between them. By using the high correlation between them, the air pressure correction has been done on the gravity tide and non - tide changes. Before and after the correction, there aren＇t obvious changes in the precision of the gravity tide parameters, but the drift of non - tide change is steady. This may help to catch the precursory anomalies before earthquakes.
出处
《高原地震》
2008年第1期48-51,共4页
Plateau Earthquake Research
关键词
重力观测
气压
潮汐参数
非潮汐变化
相关分析
前兆异常
Gravity observation
Air pressure
Tide parameters
Non- tide change
Correlation analysis
Precursory anomaly
