Results 71 to 80 of about 22,636 (288)
A 6D interferometric inertial isolation system
We present a novel inertial-isolation scheme based on six degree-of-freedom (6D) interferometric sensing of a single reference mass. It is capable of reducing inertial motion by more than two orders of magnitude at 100\,mHz compared with what is ...
Martynov, Denis, Mow-Lowry, Conor M.
core +1 more source
Plant Resonance of Seismometers [PDF]
A seismometer resting on an elastic medium can be regarded as a simple damped oscillator. Methods for measuring the “plant” resonance of seismometers are discussed along with the various parameters affecting the resonance. Laboratory measurements on sand and rubber, and field measurements on different types of soils were made using an electromechanical
James T. Wilson, D. E. Willis
openaire +2 more sources
Magmatic System of the Hainan Plume Revealed by Ambient Noise Tomography
Abstract The magmatic system of the Hainan plume is important for unraveling the mechanism of intraplate volcanism. We develop a detailed three‐dimensional shear‐wave velocity (Vs) model of the crust and uppermost mantle using ambient noise tomography to investigate the magmatic system of the Hainan plume. Rayleigh wave phase velocity dispersions (5–40
Gong Deng+3 more
wiley +1 more source
mFAST: A MATLAB toolbox for ocean bottom seismometer refraction first-arrival traveltime tomography
First-arrival seismic traveltime tomography (FAST) is a well-established technique to estimate subsurface velocity structures. Although several existing open-source packages are available for first-arrival traveltime tomography, most were written in ...
Bin Liu
doaj +1 more source
SEIS: Insight's Seismic Experiment for Internal Structure of Mars. [PDF]
By the end of 2018, 42 years after the landing of the two Viking seismometers on Mars, InSight will deploy onto Mars' surface the SEIS (Seismic Experiment for Internal Structure) instrument; a six-axes seismometer equipped with both a long-period three ...
Aicardi, C+99 more
core +1 more source
Andrija Mohorovicic (1857-1936) is a world-famous Croatian geophysicist and the discoverer of the Earth's crust/mantle boundary known as the Moho-discontinuity. The historical seismometer used by A. Mohorovicic to detect the Moho in 1909 is still maintained in working conditions, and is displayed in the Department of Geophysics of the University of ...
openaire +2 more sources
A seismometer maps Mars’s anatomy [PDF]
NASA’s InSight is the first mission to explore seismic waves in a planetary body since Apollo 17 in 1972.
openaire +1 more source
Structure and Seismicity of the Dead Sea Fault and the Galilee Revealed by 3D Earthquake Tomography
Abstract Strike‐slip fault systems near regions of oblique tectonic convergence/divergence commonly develop bends, stepovers, and other complexities that control crustal deformation, stress localization, and associated geophysical processes. Here, we investigate the complex crustal structure of the strike‐slip Dead Sea Fault (DSF) system and the ...
G. Ben‐Dor+6 more
wiley +1 more source
Onland and Offshore Extrinsic Fabry–Pérot Optical Seismometer at the End of a Long Fiber
We report here the design, performance, and in situ demonstration, on‐land and offshore, of an innovative high‐resolution low‐cost optical (laser) seismometer.
P. Bernard+16 more
semanticscholar +1 more source
First Optical Seismometer at the Top of La Soufrière Volcano, Guadeloupe
Accurate monitoring of volcanic activity demands expertise in fields including geophysics, geology, and geochemistry. Data obtained from the most recent technical advances are particularly vital in pre-eruptive phases. In particular, seismic monitoring
Romain Feron+7 more
semanticscholar +1 more source