搜索结果: 1-15 共查到“地震学 radon”相关记录17条 . 查询时间(0.093 秒)
Indoor and soil radon measurements in the Hyblean Foreland (South-East Sicily)
radon uranium indoor air soil gas Hyblean Foreland
2015/9/2
Indoor radon behavior in two sites of SE Sicily was studied as a function of the soil radon concentration. The
chosen locations were Ragusa and Modica towns, placed in the Hyblean Plateau (northern m...
The nexus of soil radon and hydrogen dynamics and seismicity of the northern flank of the Kuril-Kamchatka subduction zone
radon hydrogen seismicity geodeformation wave earthquake
2015/9/2
The comparison of kinematics and dynamic parameters of radon and molecular hydrogen concentration in subsoil
air on the stations network at the Petropavlovsk-Kamchatsky geodynamic proving ground with...
Experimental studies of anomalous radon activity in the Tlamacas Mountain, Popocatepetl Volcano area, México: new tools to study lithosphere-atmosphere coupling for forecasting volcanic and seismic events
atmosphere electricity Litosphere-Atmosphere coupling
2015/8/24
This study presents and discusses the results of soil radon monitoring at three different volcano sites and one reference site, from December 2007 to January 2009. This relates to the activity of the ...
A simple statistical procedure for the analysis of radon anomalies associated with seismic activity
Radon emissions Seismic precursors Seismic activity
2015/8/18
This study presents an analysis of data from various radon anomalies that were compiled by Toutain and Baubron [1999], to investigate their relationships with the earthquake parameters of magnitude an...
各向异性高分辨率Radon变换压制多次波
各向异性 Radon变换 高分辨率 多次波压制
2016/8/30
针对VTI介质和海洋大炮检距地震数据反射波同相轴不能严格满足双曲时距关系，一次波和多次波能量在Radon域中聚焦性较差，多次波的压制效果不理想的问题，通过在双曲Radon变换积分路径中引入各向异性参数η，描述VTI介质和海洋大炮检距地震数据的时距曲线关系，在Radon域中有效聚焦一次波和多次波能量。同时，引入基于共轭导向梯度(CGG)算法的各向异性高分辨率Radon变换，基于L1范数对模型空间进行...
Analysis of soil radon data in earthquake precursory studies
LR-115 Radon monitoring Correlation Seismic activity
2015/8/18
Soil radon data were recorded at two selected sites along Mat fault in Mizoram (India), which lies in the highest seismic zone in India. The study was carried out during July 2011 to May 2013 using LR...
3D高阶抛物Radon变换地震数据保幅重建
3D高阶Radon变换 AVO数据 保幅重建
2014/10/8
本文结合传统3D抛物Radon变换（PRT）和AVO数据正交多项式拟合，给出了3D高阶抛物Radon变换方法（HOPRT）.该变换增加了描述AVO数据变化的梯度信息和曲率信息，拓展了传统3D抛物Radon变换方法，使其在具有AVO特征的数据重建中具有更高的准确度，从而提高AVO分析的可靠性.文中给出了3D高阶抛物Radon变换进行地震数据保幅重建的流程.理论模型和实际地震资料的重建结果显示了本文方...
反射波场分离是井孔地震资料处理中极其重要的一个环节，波场分离的质量直接影响成像结果的精度.不管是VSP还是井间地震资料，其反射波时距曲线都近似直线型，根据这一特征，本文提出一种改进的线性Radon变换方法来进行井孔资料的反射波上下行波场分离.该方法基于频率域线性Radon变换，通过引入一个新的变量λ来消除变换算子对频率的依赖性，避免了求取每一频率分量对应的不同变换算子，显著降低了计算成本;文中在求...
高阶高分辨率Radon变换地震数据重建方法
高阶高分辨Radon变换 正交多项式变换 AVO 数据重建
2014/3/11
地震数据缺失会影响处理和解释结果。本文基于Radon变换地震数据重建并结合地震波同相轴横向连续性，提出高阶高分辨率Radon变换地震数据重建方法。该方法将正交多项式变换和Radon变换结合，通过正交多项式变换拟合地震波振幅随炮检距变化特性，改进了传统Radon变换只考虑地震道叠加特性的缺陷，增加了振幅变化的斜率和曲率信息，保留了地震波AVO特性，有利于地震波振幅信息在横向变化情况下缺失地震数据的重...
The origin and detection of spike-like anomalies in soil gas radon time series
radon detection spike-like anomaly
2017/4/12
Desorption of radon is of short duration but longer than telluric noises and is usually accomplished in less than one
minute based on our binary event counting with a 16 second interval. Adapting an ...
A possible link between radon anomaly and earthquake
soil gas lineaments meteorological parameters
2017/4/12
Radon in soil gas had been measured at 39 locations, distributed along three prominent lineaments in the Guwahati
city, Assam, India; using solid state nuclear track detectors. The most suitable site...
Continuous radon monitoring in the Jowshan hot spring as an earthquake precursor, SE Iran
earthquake precursor Jowshan hot spring continuous monitoring
2017/4/12
In this paper, we present the results of the first experience for spring water 222Rn concentration continuous monitoring
in Jowshan hot spring, SE Iran, from December 2007 to July 2008. This hot spri...
Spectral-decomposition techniques for the identification of radon anomalies temporally associated with earthquakes occurring in the UK in 2002 and 2008
Spectral-decomposition techniques identification radon anomalies temporally associated
2010/10/20
During the second half of 2002, the University of Northampton Radon Research Group operated two continuous hourly-sampling radon detectors 2.25 km apart in the English East Midlands. This period inclu...
Recent events in Haiti and Chile remind us of the devastation that can be wrought by an earthquake, especially when it strikes without warning. For centuries, people living in seismically active regio...