皖北地区水位水温观测资料动态异常特征分析  

Analysis of Dynamic Anomaly Characteristics of Observation Data of Water Level and Water Temperature in Northern Anhui

作　　者：石小磊 李良辉 张伟峰[2] 潘洁[2] 肖攀[2] 杜默然 SHI Xiaolei;LI Lianghui;ZHANG Weifeng;PAN Jie;XIAO Pan;DU Moran(Earthquake Monitoring Center of Bengbu Earthquake Administration,Bengbu,Anhui Province,233000 China;Earthquake Administration of Anhui Province,Hefei,Anhui Province,230031 China)

机构地区：[1]蚌埠市地震局地震监测中心,安徽蚌埠233000 [2]安徽省地震局,安徽合肥230031

出　　处：《科技资讯》2020年第26期59-61,共3页Science & Technology Information

基　　金：安徽省地震局科研合同制课题《皖北地区水位水温观测资料动态信息特征提取与特征分析》(课题编号:201704)。

摘　　要：以2017年8月8日四川九寨沟7.0级地震和2017年11月18日西藏林芝6.9级地震为例,对皖北地区部分水位水温进行了详细分析,对影响观测质量的各种干扰因素进行了剔除,分析水位水温的动态变化规律,研究地震发生前的异常信息以及震后变化。结果显示,皖北部分水位、水温动态信息变化规律存在同步同向变化、同步反向变化、无规律变化3类;水位在震时和震后均有异常动态变化,表现出突升或突降、阶变与震荡变化,对地震波脉冲应力的反映速度不同,变化持续时间也会有所不同。而水温在震前的异常动态更为灵敏,研究结果为以后的台站前兆分析提供依据。Taking the August 8th,2017 Sichuan Jiuzhaigou Ms7.0 earthquake and the November 18th,2017 Linzhi,Tibet Ms6.9 earthquake as examples,a detailed analysis of some water levels and water temperatures in the northern Anhui region was conducted,and various interference factors that affected the quality of observations were analyzed.The removal was carried out to analyze the dynamic changes of the water level and temperature,and to study the abnormal information before the earthquake and the changes after the earthquake.The results show that there are three types of changes in the dynamic information of water level and water temperature in northern Anhui:synchronous co-directional change,synchronous reverse change,and irregular change.The water level has abnormal dynamic changes during and after the earthquake,showing a sudden rise or fall.,Step change and shock change,the reflection speed of seismic wave pulse stress is different,the change duration will also be different.The anomalous dynamics of the water temperature before the earthquake are more sensitive,and the research results provide a basis for future station precursor analysis.

关 键 词：强震 水位 水温 特征 监测 

分 类 号：P315[天文地球—地震学]