Results 91 to 100 of about 6,760 (227)
Foreshocks explained by cascades of triggered seismicity [PDF]
The observation of foreshocks preceding large earthquakes and the suggestion that foreshocks have specific properties that may be used to distinguish them from other earthquakes have raised the hope that large earthquakes may be predictable. Among proposed anomalous properties are the larger proportion than normal of large versus small foreshocks, the ...
Helmstetter, Agnes, Sornette, Didier
openaire +2 more sources
Abstract Fault slip occurs in both seismic and aseismic styles with spatial variability across scales, yet non‐unique source inference limits our ability to resolve slip complexity and dynamics. Here we evaluate the effect of spatial smoothing regularization in Bayesian frameworks by comparing an unregularized (BUR) approach that samples distributed ...
Xiong Zhao, Junle Jiang
wiley +1 more source
Abstract Wave‐particle resonance is a key mechanism for energy transfer in collisionless plasmas with important implications for wave excitation and particle acceleration. Cyclotron resonance occurs when a particle's gyromotion synchronizes with the wave fields, with their interactions usually describable by quasilinear diffusion or nonlinear trapping.
Jing‐Huan Li +14 more
wiley +1 more source
Quantifying Uncertainty in OMNI Solar Wind Measurements Projected From L1 to the Earth's Bow Shock
Abstract Many routine measurements of the solar wind plasma and interplanetary magnetic field (IMF) are made at the L1 Sun–Earth Lagrange point; therefore, it is helpful to characterize the errors introduced in propagating these measurements to the near‐Earth environment.
N. C. Rogers, J. A. Wild, A. Grocott
wiley +1 more source
2022年6月10日四川马尔康MS6.0震群序列时空演化特征
2022年6月10日马尔康MS6.0震群序列发生在松岗断裂与龙日坝断裂交会处,呈震群型活动特征。本文以四川地震台网目录为基础,对马尔康地震序列的参数特征开展研究,取该序列三次MS5.0地震之后各一个小时,作为 Ⅰ , Ⅱ , Ⅲ 共计三个阶段,进行对比分析。由于较大地震后短时间内目录遗漏的余震较多,为增大研究所需的地震样本量,首先采用模板匹配法进行微小地震识别,以补充完备目录,并利用识别的地震目录及台网目录分别计算马尔康MS6.0地震序列的b值、p值等参数。计算结果显示,相比于第 Ⅱ 和 Ⅲ 阶段,第 ...
Yue Gong +7 more
doaj +1 more source
In hybrid-Vlasov plasma modeling, the ion velocity distribution function is propagated using the Vlasov equation while electrons are considered a charge-neutralizing fluid. It is an alternative to particle-in-cell methods, one advantage being the absence
Yann Pfau-Kempf +9 more
doaj +1 more source
Daily Calibration of the Fluxgate Magnetometer Onboard the Cluster Spacecraft
Abstract During their 24 years mission of investigating the Earth's magnetosphere, the four Cluster satellites delivered high quality magnetic field data measured by the onboard fluxgate magnetometers (FGM). To achieve the accuracy required for scientific studies, the raw magnetic field data need to be calibrated on a regular basis.
Niklas Grimmich +5 more
wiley +1 more source
Preliminary Analysis of the Aftershock Sequence of the February 6, 2023, Turkey Earthquake [PDF]
The February 6, 2023, Turkey earthquake with a moment magnitude (Mw=7.8) will be recognized as one of the most powerful earthquakes to strike a large metropolitan area in recent memory.
Radwan El-Kelani, Anas Atatri
doaj +1 more source
Foreshock Transients: Their Characteristics and Effects on Particle Acceleration [PDF]
Earth’s foreshock is filled with particles that have been reflected at the bow shock and are streaming away from it. Interaction of these particles with solar wind particles and discontinuities within this region can cause foreshock transients to form ...
Liu, Zixu
core
Foreshock density holes and their connection with other foreshock transients [PDF]
Thesis (Ph.D.) University of Alaska Fairbanks, 2024Foreshock is the region upstream of the bow shock that is magnetically connected to it. In this region the particles reflected from the bow shock interact with the incoming solar wind plasma, making this
Lu, Xi
core

