EXAMPLES

In this section I show two examples that illustrate the method. The first one represents a vertically polarized displacement source in a two-layer medium (Figure ). The top medium is isotropic and the bottom medium (where the source is located) is transverse-isotropic. Both the vertical and horizontal components of the displacement field are displayed.

 

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Figure 5 The source is a vertically-polarized displacement field located in the bottom layer of a two-layer model. The upper layer is isotropic, while the bottom is transverse isotropic. The left and right panels represent, respectively, the vertical and the horizontal components of the displacement field. Press the button to see a movie.

The second example (Figure ) has an explosive source located below a free-surface boundary. The media has some degree of structural complexity and the side and bottom boundaries are absorbing, with the absorbing region visible in the figure.

 

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Figure 6 The source is a spherically symmetric explosive field located near the free surface of a structurally complex model. The two panels follow the same convention as Figure (). Press the button to see a movie.