Slowness vector
Webb13 apr. 2024 · After obtaining the slowness vector, the ray velocity can be computed easily. A 2D model is designed to test the feasibility of the new methods. Using the results for … Webb22 nov. 2024 · The basic role in the expressions for the reflection and transmission coefficients is played by complex-valued slowness vectors of incident and transmitted waves. Real-valued parts of slowness vectors are called propagation vectors and imaginary parts are called attenuation vectors.
Slowness vector
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Webb8 mars 2006 · In this paper, a method of calculating the slowness vector for a specified ray direction is proposed. The method is applicable to general anisotropy of arbitrary … WebbThus, the slowness vector (to be found) can be presented as a linear combination of two unit-length vectors: the polar axis and the ray velocity directions, with two unknown …
Webbslowness vectors of all bootstrap samples are gathered and the clustering algorithm DBSCAN (Density-Based Spatial Clustering of Applications with Noise) is used to identify arrivals as clusters of slowness vectors. The mean of each cluster gives the slowness vector measurement for that arrival and the distribution of slowness vectors in each ... Webbslowness. 1. n. [Formation Evaluation, Geophysics] Also called interval transit time, the amount of time for a wave to travel a certain distance, proportional to the reciprocal of velocity, typically measured in microseconds per foot by an acoustic log and symbolized by t or DT. P-wave interval transit times for common sedimentary rock types ...
Webb17 juli 2024 · The slowness vector describes the full perturbation of the wavefield essentially combining the information from backazimuth and horizontal slowness. The radial pattern and magnitude of the vectors around the circular feature southeast of Africa (35°S, 30°W) support our interpretation that this structure is the cause of our observations. WebbSummary The inverse problem of finding the (multiple) slowness vectors from a given ray (group) direction in anisotropic elastic media arises in many wave/ray-based methods, in …
Webbsurface. The slowness vector is determined by numerically solving a system of multivariate polynomial equations of the sixth order. By solving the equations, we obtain a complete …
WebbAfter obtaining the slowness vector, the ray velocity can be computed easily. A 2D model is designed to test the feasibility of the new methods. Using the results for the model, we … sluis lithWebbComputation of qP- and qS-wave Rays, Traveltimes, Slowness Vector and Polarization in General Anisotropic Media Junwei Huang 1 *, Juan M. Reyes-Montes 1 and R. Paul Young 2 sluiss by millWebbFantastic case study from StableCog and what did they consider when selecting between all the popular Vector Databases And slowness complaints of pgvector on Postgres ... sluis online contactWebb24 dec. 2024 · Here, we would like to use a non-zero slowness value to analyze the resolution of the seismic array. Note that, θ is the back-azimuth of the plane wave source. Let the back-azimuth of the incoming plane wave slowness vector be α, and we have θ + α = 3 / 2 π and c o s ( α) = − s i n ( θ), s i n ( α) = − c o s ( θ) sluis internationalWebbThe slowness vector measurements of all the individual bootstrap samples are collected and we use the DBSCAN (Density-Based Spatial Clustering of Applications with Noise) … solano county california property searchWebb24 mars 2024 · To find the slowness vectors that maximize the amplitude of our 215-s phase, we performed array stacking assuming a range of slowness vectors for each source bin and found the 215-s-phase amplitude on the stacked cross-correlation functions for each slowness vector, which is defined as the maximum amplitude in the time window … sluiswest advocatenWebb1 juni 1997 · The slowness vector, which is typically transformed into bearing and velocity, is a key parameter used for identifying seismic phases and for event source location. … solano county calls for service