Sentence examples for fast direction from inspiring English sources
Furthermore, our Rayleigh and Love wave group velocity data at periods of around 20 s show evidence for azimuthal anisotropy with a NW-SE fast direction.
"If the main flow were the mantle being sheared by the plate above it, where the plate is just dragging everything with it, we would predict a fast direction that's different than what we see," said coauthor James Gaherty, a geophysicist at Columbia University's Lamont-Doherty Earth Observatory.
In region c, the fast direction of Pn anisotropy is generally the same as the SKS splitting fast direction.
The black trajectories on (S^{a}) move towards F and then jump in the fast direction.
The fast direction of the P n velocity appears to be perpendicular to the lin-eation of magnetic anomalies.
The first is an extended version of the normal form of a folded node [34, 47], where a fast variable with a stable fast direction is added.
A VSH-Chebyshev vector transform with two "fast directions" is also developed and briefly presented.
In addition to anisotropy depth estimation, some of the subroutines in AnisDep can be used for other applications such as computing circular mean and SD of the observed fast directions, and for computing the coordinates of ray-piercing points.
For a given assumed depth of anisotropy, the program computes a variation factor which is a weighted sum of the arithmetic standard deviation (SD) of the splitting times and the circular SD of the fast directions over overlapping blocks.
Fig. 5. Rose diagrams showing the distribution of shear-wave-splitting fast directions determined using the cross-correlation method.
The anisotropy in the region is relatively simple, with a high amplitude and fast directions parallel to the Red River Shear Zone in the western part.
