Results 111 to 120 of about 4,586 (215)

Using the LANDSAT data collection system for field geophysics: Operations in the British Virgin Islands [PDF]

This particular application was to vertical geodesy by tide gauge and tiltmeter on a small desert island in the British Virgin Islands.
Allen, W. K., Gilbert, E. L., Painter, J. E., Webster, W. J., Jr.   +3 more
core   +1 more source

Characterizing the Mechanics of Fracturing from Earthquake Source Parameter and Multiplet Analyses: Application to the Soultz-sous-Forêts Hot Dry Rock site [PDF]

, 2005
In 2000 and 2003, two massive hydraulic fracturing experiments were carried out at the European Geothermal Hot Dry Rock site at Soultz-sous-Forêts, France. The objective was to create a dense network of enhanced permeability fractures, which would form
Michelet, Sophie, Toksoz, M. Nafi
core  

Ecoute microsismique appliquée aux versants instables, exemple des ruines de Séchilienne (Isère, 38) [PDF]

, 2010
International audienceField observations and movements measured since 1985 by the Lyon CETE (Public works regional engineering office) monitoring system at the Ruines de Séchilienne show that the slope deformation and fault mechanisms are complex.
Bigarre, Pascal, Charmoille, Arnaud, Dunner, Clémence, Klein, Emmanuelle   +3 more
core   +1 more source

The effect of local wind on seismic noise near 1 Hz at the MELT site and in Iceland [PDF]

, 1999
The mantle electromagnetic and tomography (MELT) experiment on the east Pacific rise near 17°S was the first large teleseismic experiment on a midocean ridge.
Bjarnason, Ingi Þorleifur, Webb, Spahr C., Wilcock, William S. D.   +2 more
core  

Statistical analysis of Stromboli VLP tremor in the band [0.1?0.5] Hz: some consequences for vibrating structures

, 2006
International audienceWe analyze time series of Strombolian volcanic tremor, focusing our attention on the frequency band [0.1?0.5] Hz (very long period (VLP) tremor). Although this frequency band is largely affected by noise, we evidence two significant
de Lauro, E., de Martino, S., Falanga, M., Palo, M.   +3 more
core   +1 more source

Time-Frequency Representation of Microseismic Signals using the Synchrosqueezing Transform

, 2013
Resonance frequencies can provide useful information on the deformation occurring during fracturing experiments or $CO_2$ management, complementary to the microseismic event distribution. An accurate time-frequency representation is of crucial importance prior to interpreting the cause of resonance frequencies during microseismic experiments.
Herrera, Roberto H., Tary, Jean-Baptiste, van der Baan, Mirko   +2 more
openaire   +2 more sources

Project OASIS: The Design of a Signal Detector for the Search for Extraterrestrial Intelligence [PDF]

An 8 million channel spectrum analyzer (MCSA) was designed the meet to meet the needs of a SETI program. The MCSA puts out a very large data base at very high rates.
Dixon, R., Healy, T., Lord, S.
core   +1 more source

CAE Neural Network and Reverse-Time Localization Imaging Method for Picking of Downhole Fracturing Microseismic Signal

IEEE Access
Effective surface-based monitoring of microseismic signals generated by hydraulic fracturing in drilling is of significant importance to increase oil and gas production.
Wei Wang, Tingting Lin, Chaoqun Shi
doaj   +1 more source

Slope stability monitoring from microseismic field using polarization methodology

, 2003
International audienceNumerical simulation of seismoacoustic emission (SAE) associated with fracturing in zones of shear stress concentration shows that SAE signals are polarized along the stress direction.
Goldin, S. V., Kolesnikov, Yu. I., Nemirovich-Danchenko, M. M., Seleznev, V. S.   +3 more
core   +2 more sources

Automatic P-Phase-Onset-Time-Picking Method of Microseismic Monitoring Signal of Underground Mine Based on Noise Reduction and Multiple Detection Indexes. [PDF]

Entropy (Basel), 2023
Dai R, Wang Y, Zhang D, Ji H.
europepmc   +1 more source