降雨变化对云县台垂直摆倾斜仪的影响分析

摘要

通过分析云县台2013～2016年降雨对垂直摆倾斜仪观测数据的影响发现,在春冬两季,主要受孤立的强降雨影响,当日降雨量达到15 mm以上时,便对倾斜量产生影响;在降雨较集中的夏秋季节,受连续降雨的影响,当日降雨量达到驱动降雨量后,降雨与倾斜量有很好的相关性,而雨季中期关系不明显.由于垂直摆倾斜仪观测值曲线与降雨累积值曲线存在很强的相关性,利用一元线性回归方法对降雨干扰进行剔除,有利于准确提取和识别前兆异常.%Analyzing the effect of precipitation on data observed by horizontal pendulum tiltmeters at Yunxian station,we found:in spring and winter,as it accumulatively comes to 15 mm,precipitation effects ground tilt amount;in summer and autumn,when the cumulative value of rainfall reaches the driving rainfall,there is a good correlation between rainfall and sope.In the middle of the rainy season,the relationship is not obvious.Due to the vertical pendulum observation curve,there is strong correlation between rainfall accumulation and the value curve.We use the unary linear regression method to rule out of rainfall interference