Variation in the response function of the groundwater table with atmospheric pressure in the Southern Kuriles
Variation in the response function of the groundwater table with atmospheric pressure in the Southern Kuriles
复制标题
南千岛群岛地下水位随大气压的响应函数变化
DOI：
--
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
M. Y. Lezhnev
中科院分区：
文献类型：
--
作者：
A. Lyubushin;M. Y. Lezhnev
本文继续了Lyubushin等和Malugin a B Lyubushin和Latynina Lyubushin de对响应函数和谱矩阵的频率-时间分析在低频地球物理监测时间序列多维处理中的应用所作的研究。Lyubushin等人估计了在一个无压地区奥布宁斯克测得的地壳压力变化到线性应变的幅频转换函数的时间变化。他们发现在h到h的频率范围内响应的准周期演化体制。Lyubushin和Malugin a B b还估计了地下水的压力相关响应函数在莫斯科省奥布宁斯克和泽列涅定居点的一个非地震区，在这两种情况下，他们发现，随着频率超过h的压力变化强度的增加，振幅频率传递函数明显减小，响应函数的减小达到频率h。注意，在奥布宁斯克的线性应变对压力变化的响应的演变中没有观察到这种效应。al Lyubushin和Malugin a B认为，这种效应是由于大气压力在h以上频率的高频振荡对上地壳强度的作用减弱而产生的。强度的减弱是由于叠加了大气压力的镶嵌空间分布。
This work continues the previous studies Lyubushin et al Lyubushin and Malugin a b Lyub ushin and Latynina Lyubushin de voted to the application of frequency time analysis of the response functions and spectral matrices in multi dimensional processing of time series of low frequency geophysical monitoring In particular we consider time evolution of the response function of the groundwater level measured in a well on Shikotan Island Southern Kuriles with variation in the atmospheric pressure Lyubushin et al estimated the time variation of the amplitude frequency function of transfer from pres sure variations to linear strains of the crust measured in an aseismic region Obninsk They found a quasi periodic evolutionary regime of the response in a fre quency range from h to h Lyubushin and Malugin a b estimated the pre ssure dependent response function for underground wa ters also in an aseismic zone at the Obninsk and Ze lenyy settlements Moscow province In both cases they found an appreciable decrease in the amplitude frequency transfer function with increasing intensity of pressure variations at frequencies above h with the decrease in the response function reaching frequen cies to h Note that such an e ect was not ob served in the evolution of the response of linear strains to pressure variations in Obninsk Lyubushin et al Lyubushin and Malugin a b suggested that this e ect was produced by weakening the ac tion of high frequency oscillations of the atmospheric pressure at frequencies above h on the upper crust strength The decrease in the strength results from superimposing a mosaic spatial distribution of the