Results 81 to 90 of about 908,118 (242)

Building realistic structure models to train convolutional neural networks for seismic structural interpretation

open access: yesGeophysics, 2019
Seismic structural interpretation involves highlighting and extracting faults and horizons that are apparent as geometric features in a seismic image.
Xinming Wu   +4 more
semanticscholar   +1 more source

Influence of Error in Estimating Anisotropy Parameters on VTI Depth Imaging

open access: yesInternational Journal of Geophysics, 2016
Thin layers in sedimentary rocks lead to seismic anisotropy which makes the wave velocity dependent on the propagation angle. This aspect causes errors in seismic imaging such as mispositioning of migrated events if anisotropy is not accounted for.
S. Y. Moussavi Alashloo   +3 more
doaj   +1 more source

Kiruna region earthquakes, blasts and mining induced events

open access: yes
Data set of 189 earthquakes, 221 mining induced events from the Kiruna mine and 221 blasts from the Kiruna mine, recorded by seismic stations of the Swedish National Seismic Network (SNSN) and neighbouring countries. The earthquakes are mostly located to
Swedish National Seismic Network
core   +1 more source

Multiscale dilated denoising convolution with channel attention mechanism for micro-seismic signal denoising

open access: yesJournal of Petroleum Exploration and Production Technology
Denoising micro-seismic signals is paramount for ensuring reliable data for localizing mining-related seismic events and analyzing the state of rock masses during mining operations.
Jianxian Cai   +4 more
doaj   +1 more source

A Medium-sized Seismograph Network in a Challenging Environment

open access: yesGeofísica Internacional, 1996
Se describe la operación de las red sísmicas de 30 estaciones que cubre las islas del Caribe Oriental, con centro en la Universidad de West Indies en Trinidad. La red incluye la vigilancia de 15 volcanes activos en un arco de 750 km de largo.
Lloyd L. Lynch   +4 more
doaj   +1 more source

Frequency‐Bessel Transform Method for Effective Imaging of Higher‐Mode Rayleigh Dispersion Curves From Ambient Seismic Noise Data

open access: yesJournal of Geophysical Research - Solid Earth, 2019
It has been widely recognized that the cross‐correlation function of ambient seismic noise data recorded at two stations approximates to the part of Greens function between two stations.
Jian-Nan Wang, Gaoxiong Wu, Xiaofei Chen
semanticscholar   +1 more source

Inversion of seismic reflection data from the Gialo Field, Sirte Basin [PDF]

open access: yes, 1996
This project is concerned with the development of software to invert seismic reflection data for acoustic impedance, with application to the YY-reservoir area in Gialo Field, Sirte Basin.
BenGheit, Ali O.
core  

One-dimensional physical reference models for the upper mantle and transition zone: combining seismic and mineral physics constraints [PDF]

open access: yes
One-dimensional seismic reference models are known to be a nonunique solution to global seismic data, hampering an interpretation in terms of physical structure. Here we test the compatibility of the simplest hypothesis of a mantle convecting as a whole,
Giardini, D.   +3 more
core   +1 more source

山东省井水位对几次大地震同震响应的比较分析

open access: yesDizhen xuebao, 2019
采用多井对多震的方式,选取山东省地下流体观测井网中同震响应较好的6口观测井作为研究对象,分别从水位变化形态和幅度对比分析2011年日本MW9.0地震、2012年苏门答腊MW8.6地震和2015年尼泊尔MW7.8地震引起的井水位变化特征,探讨引起该变化的可能机理。研究结果显示:水位同震变化形态以振荡为主;通过定量分析认为聊古一井井水位的阶升是由含水层渗透系数增大所致;位于同一断裂带上的聊古一井和鲁27井井水位在同一地震中所表现的变化形态不同,可能与两个观测井所处的地质构造条件和地震活动背景不同有关 ...
Kai Liu   +7 more
doaj   +1 more source

Assessment of Freeze-Thaw in Romania [PDF]

open access: yesE3S Web of Conferences
Due in part to political participation, the study of severe climate and weather conditions has attracted a lot of attention in recent decades. However, there has been insufficient focus on the historical climate monitoring data.
Arion Cristian   +4 more
doaj   +1 more source

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